OOIR: Observatory of International Research

Papers

(The TQCC of International Journal of RF and Microwave Computer-Aided Engineering is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-01-01 to 2026-01-01.)

Article	Citations
An orbital angular momentum vortex wave antenna with low in‐band radar cross section and reduced divergence angle	28
A hemispherical near‐field focusing antenna for non‐metallic delamination detection	25
Issue Information	23
Miniaturized High‐Performance Metasurface Antenna Embedded in Cross‐Shaped Strips	21
An Efficient Geometric Parameter Optimization Method for Microstrip Bandpass Filter Based on One‐Dimensional Convolutional Neural Network	21
Active frequency selective surface with switchable response for satellite communications in X and Ka bands	20
A micromachined ultra‐wide stopband lowpass filter based on stepped impedance resonator loaded T‐shaped structure	19
A height‐reduction antenna with simple structure for base station	19
Compact Millimeter-Wave Antenna Array with Low Sidelobe Level for Vital Sign Monitoring Application	18
Beam steering patch antennas using reconfigurable parasitic elements of tunable electrical size	17
A novel dual‐band slot‐ring array antenna using both‐sided MIC technology for polarization detection	17
Wide‐bandwidth and tunable PIFAs under dual‐resonance modes	17
Fractal loaded six element multiple‐input‐multiple‐output antenna configuration for super wideband operation	16
Low‐profile wideband 8‐antenna array design for 5G smartphone application	16
Hybrid lumped‐distributed loading design approach to wideband dual‐mode resonant monopole antennas	16
A Dual-Band Low SAR Microstrip Patch Antenna with Jean Substrate for WBAN Applications	15
Deep Learning for Inverse Design of Broadband Quasi-Yagi Antenna	15
Dual‐polarized patch antenna array with hemispherical beam coverage	15
A Low-Scattering Antenna Array at Both Normal and Grazing Incidence	13
A Multifunctionality Reconfigurable HMSIW Filter by Using EBG Structure and Diodes for C/X-Band Application	13
	13
Dual circularly polarized semi‐cylindrical hybrid dielectric resonator antenna for X and Ku ‐band applications	12
Compact broadband circularly polarized slot antenna with artificial magnetic conductor reflector	12
8‐12 GHz single‐input GaN load modulated balanced amplifier monolithic microwave integrated circuit	12
A Flexible Multiband Dendritic Structure Fractal Antenna for 4G/5G/WLAN/Bluetooth Applications	12

Modeling of heterojunction bipolar transistors based on novel Wiener‐type dynamic neural network	12
Bandstop filtering for integrated substrate gap waveguide high‐gain and wideband slot antenna for 5G	11
Design of Hybrid Bandpass Filter Chips with High Selectivity and Wideband Using IPD and FBAR Technology	11
An ultra‐wideband dual‐band hybrid frequency‐selective rasorber	11
Single‐step algorithm for the cascade assembly of multiple S‐parameters based multiports networks	11
Wideband dual‐polarized wide solid angle scanning cylindrically conformal millimeter‐wave phased array	11
Design of broadband reconfigurable phase shifters	11
A high selectivity planar filtering quasi‐Yagi antenna	11
A 1‐bit reconfigurable metasurface antenna for ground penetrating radar application	10
Compact CPW‐fed ultra‐wideband ‐MIMO antenna with quad‐band notched characteristics	10
Dual‐band polarization‐insensitive orbital angular momentum beam generation based on 1‐bit polarization‐converting transmitting coding metasur	10
Design of dual‐band balanced bandpass filter based on a single substrate integrated waveguide cavity	10
Numerical Analysis of Therapeutic Effects by Varying Slot Numbers and Slot‐to‐Slot Distance in Microwave Ablation Using Multislot Coaxial Antenna	9
A decoupling structure without sacrificing antenna‐element performance for 5G smartphone designs	9
Millimeter-Wave Broadband MIMO Antenna Using Metasurfaces for 5G Cellular Networks	9
Filtering power divider with improved isolation bandwidth using frequency‐varying network	9
Issue Information	9
Modeling of spatial permittivity variations using Karhunen–Loève expansion for stochastic electromagnetic problems	9
Design of low‐specific absorption rate sticker using electric‐field components optimization	9
A Wideband, Sharp Roll‐Off U‐Band Diplexer in Suspended Stripline Technology	8
A band‐stop filter based on spoof surface plasmon polaritons using complementary split‐ring resonators	8
Design of SIW‐Based Compact and High‐Gain Filtenna Array for W‐Band	8
Using a hybrid encoding method based on the hexagonal resonators to increase the coding capacity of chipless RFID tags	8
Manifold Frequency Division Multiplexer With Narrowband SIW–SSPP Hybrid Filters	8
Multilayer perceptron–random forest based hybrid machine learning–neural network model for GaN high electron mobility transistor's parameter estimations	8
Evolutionary Algorithm-Inspired Binary Sequence-Based Hybrid Fault Detection Method for Nonuniformly Excited Linear Antenna Array	8
Simultaneous flattening of amplitude and group delay responses in narrowband bandpass filters using a novel systematic design method	8
A novel dual‐band highly efficient power amplifier for 5G applications	8
Compact tunable filtering balun with stable stopband using varactor‐loaded coupled‐line‐loaded hairpin ring resonator	8
Dual‐Band MIMO Dipole With Integrated Balun and Optimized Algorithm‐Based Decoupling Structure	8
Interconnect reliability investigation for a high power GaN MMIC PA based on APDL	8
Multiobjective Particle Swarm Optimization to Design the Top Load of a Very Low Frequency Thirteen-Tower Umbrella Antenna	8
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A 3D printed bullet‐shaped filter based on zero‐gap circular waveguide cavities	7
Reconfigurable negative group delay circuit with tunable group delay flatness	7
Design of broadband electromagnetically coupled planar antenna and array for 60 GHz millimeter wave applications	7
A 24‐GHz active up/down bidirectional mixer in 130‐nm RF CMOS	7
Design and implementation of a compact tri‐band four‐port multiple‐input‐multiple‐output antenna	7
A dual‐band filtering structure for highly selective reconfigurable bandpass filter and filtering balun	7
Parallel body‐shaping of electrically large objects described by NURBS surfaces	7
Millimeter‐wave frequency reconfigurable antenna using simple VO ₂ ‐based p	7
A frequency reconfigurable high‐order mode monopole antenna with two independently controlled band	7
High-Temperature Measurement Technology for Microwave Surface Resistance of Metal Materials	7
A compact filtering power divider with low‐pass response and wide harmonic suppression	7
Electromagnetic beam scattering of the anisotropic medium cylinder	7
Wideband and miniaturized lumped‐element low temperature co‐fired ceramic filter Using size reduced resonators for very high frequency applications	7
Point focusing wireless communication: A diffraction limit communication paradigm	7
Compact flexible and reconfigurable antenna using screen‐printed vanadium dioxide switch for wireless local area network and	6
Miniaturized dual‐band ridged substrate integrated waveguide cavity resonator and band‐pass filters	6
Beam‐steering orbit angular momentum vortex waves by mechanically rotating transmitarray	6

Fast prediction of the shielding effectiveness of heterotypic enclosures based on EMT theory	6
A miniaturized mm‐wave leaky wave antenna based on CRLH slow‐wave SIW for symmetric wide angle beam scanning	6
Power Efficiency Improvement for Dual–Dielectric Resonator Oscillators	6
A Lumped-Element Directional Coupler for Bandwidth Enhancement, Impedance Matching, and Harmonic Suppressions	6
A broadband dual‐polarized antenna with quasi‐trapezoidal patches for 5G base station application	6
Implanted Rhombus Ring Partial Inset-Fed Circularly Polarized Microstrip Monopole Antenna for WBAN Applications	6
Single‐Layer Quadruple‐Frequency Dual‐Mode Circularly Polarized All‐Textile Wearable Antenna	6
BNN‐LSTM‐DE Surrogate Model–Assisted Antenna Optimization Method Based on Data Selection	6
Channel measurements and propagation characterization for indoor terahertz communication	6
A single‐layer high‐isolation multiple‐input‐multiple‐output antenna for millimeter wave applications	6
A High Gain Vivaldi Antenna with Multiple Near-Field Dielectric Lenses and Grooved Edges	6
Design of balanced UWB BPF based on quint‐mode slotline resonator	6
Open-Circuit Fault Detection in a Single Conductor Transmission Line Using TM0 Mode Launcher	6
A quad‐band defected microstrip structure loaded bandpass filter for standard GPS , WiFi ,	6
Integrated dual‐band multiple‐input multiple‐output antenna module using higher mode control for 5G applications	6
A Collaborative Control Method of Transmission Amplitude and Phase for Transmitarray Antenna Design	6
Ahigh‐gainminiaturizedhalf‐modesubstrate integrated waveguide leaky wave antenna with integrated phase inverter	6
Research on temperature uniformity optimization of microwave heating Debye media based on MDADT	6
Coplanar waveguide fed ultra‐wideband multiple‐input multiple‐output slot antenna with connected ground and high isolation for internet of things and wireless body area network applications	6
Design of multimode broadband circularly polarized antenna using characteristics mode analysis	5
Ultrawide band cage dipole antenna for ultra high frequency band ground penetrating radar system	5
A single cavity wideband passband filter with a notched band	5
Development of a Broadband and High-Gain Circularly Polarized Array of Multilayer Slot Antennas for X-Band Wireless Communication Networks	5
A tri‐band shared‐aperture antenna combining two sub‐6G and one millimeter‐wave bands with shar	5
Constant False Alarm Detection Algorithm Based on KL Scattering	5
Compact low‐profile metasurface antenna via non‐uniform fractional meta‐cells with an e ‐TM ₃₀	5
Issue Information	5
Improved convolutional perfectly matched layer with auxiliary differential equation for the weakly conditionally stable finite‐difference time‐domain method	5
Substrate integrated coaxial line design for mmWave antenna with multilayer configuration	5
Conformal multiple input multiple output antenna array for wireless avionics intra‐communications system in aircraft cabin	5
Design of an omnidirectional transmit/receive antenna pair using mushroom‐like electromagnetic band‐gap structure	5
Miniaturized Ss‐Shaped CP Circular Patch Antenna Design for Implantable Medical Device Applications	5
A Miniaturized 14‐Element Self‐Decoupled Antenna Array for Enhanced 5G Channel Capacity in Terminals	5
Broadband polarization insensitive wide angular stable dual‐split square ring circuit analog absorber for radar cross section and electromagnetic interference shielding applications	5
Data Transmission System With High Data Rate for SDGSAT‐1 Small Satellite	5
Physics‐Informed Extreme Learning Machine Applied for Eigenmode Analysis of Waveguides and Transmission Lines	5
Asymmetric Coplanar Strip- (ACS-) Fed Side Edge Panel MIMO Antenna for IoT and 5G Applications	5
A novel dual‐band balanced‐to‐single‐ended in‐phase filtering power divider based on slotted circular patch resonator	5
Miniaturized reconfigurable dielectric resonator antenna array with reduced beam squinting	5
Ten‐port multiple input multiple output antenna for 4G/5G mobile phone applications	5
A Spaceborne Ka‐Band Earth‐Coverage Phased Array Antenna Based on DBF‐Shared Subarray for LEO Communications	5
A Wide-Angle Scanning Planar Array Based on Four-Mode Pattern-Reconfigurable Elements	5
A compact triple band circular polarized slotted microstrip patch antenna with low frequency ratio	5
A compact wideband dual‐polarized magnetoelectric dipole antenna	5
Bandpass leapfrog hybrid implicit–explicit procedure with promoted absorption for obtaining fine geometry in a single direction	5
Dual‐band double circularly polarized wide‐angle beam‐scanning antenna using planar phase gradient transmitarrays	5
High Gain Millimeter-Wave Transmitarray Antenna Based on Asymmetric U-Shaped Metasurface Using Characteristic Mode Analysis	5
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A wideband planar pattern reconfigurable antenna for IEEE 802.11ac WLAN applications	5
Three‐dimensional modified dipole structure with reduced resonant frequency	5
A 3 dB SISL coupler design by multi‐objective evolutionary algorithm based on decomposition	5
Broadband circularly polarized tapered dipole antenna for GNSS applications	5
High‐gain UWB antenna with optimized metamaterial lens layer via particle swarm optimization algorithm for satellite communication applications	4
Corrigendum to “Compact Millimeter‐Wave Antenna Array With Low Sidelobe Level for Vital Sign Monitoring Application”	4
Substrate integrated waveguide‐based simultaneous transmit and receive antenna for full‐duplex wearable devices	4
Design of Triple‐Band Slotted Planar Antenna for WLAN/WiMAX and 5G Applications	4
End‐to‐end inverse modeling and optimization for filters based on artificial neural network	4
Performance enhancement of an ultra‐wideband antenna using a compact topology optimized single frequency selective surface‐layer a	4
Knowledge‐Based Methodology of CPW‐Fed Open Stub Loaded C‐Shaped Microstrip Antenna by Surrogate‐Based Modeling	4
2–18 GHz balanced antipodal Vivaldi conformal phased array antenna with resistive load and shorting posts	4
An ultra‐wideband 3 × 3 Butler matrix with unique Vivaldi array structure for high‐range resolution radars	4
Quad‐band circularly polarized super‐wideband MIMO antenna for wireless applications	4
C/ X‐Band sub‐harmonic mixer using single oscillator and its design flow	4
Planarized quasi‐self‐complementary antenna design with ground‐cooperative radiating for mobile terminal applications	4
A wideband circularly polarized monopole antenna with elliptic ring slot patch using characteristic mode analysis	4
Design of wideband 4 × 4 Nolen matrix using m ultistub loaded phase shifters	4
A Miniaturized Low-Loss Switchable Single- and Dual-Band Bandpass Filter	4
High‐gain phase‐gradient metasurface lens antenna for 5.5–6.5 GHz with back cavity	4
A broadband loose coupling coupler with discrete structure and hybrid binary particle swarm genetic optimization algorithm	4
A circular‐polarized and high‐gain microwave correlation imaging antenna based on rotating elements	4
3-D Printed Circularly Polarized Open-Ended Waveguide Antenna Array Based on an In-Built Antipodal Exponential Groove Polarizer	4
Development of a New Equivalent Circuit of DGS with Ideal Transformer	4
A high‐precision and fast off‐line beamforming pattern estimation technique for active phased array antenna application	4
Wide‐stopband substrate‐integrated waveguide diplexers and dual‐band bandpass filter with large frequency ratios	4
Compact waveguide‐based corporate‐fed array antenna with wideband and high‐gain performance in E‐band	4
Direct synthesis for sequential networks with an arbitrary number of outputs	4
A Review of Over-the-Air Testing Methods for Performance Measurement of Antennas and Devices in Communication Systems	4
A novel miniaturizedX‐bandcoplanar waveguidebranch‐linecoupler using T‐ and ????‐type equivalent transmission lines	4
A diamond NV centers‐based magnetic field sensor using a high‐Q waveguide bandpass filter	4
A low‐profile compact UWB antenna array for sub‐6 GHz MIMO applications in 5G metal‐frame smar	4

Novel broadband angular stable linear‐circular and linear‐cross polarizer based on inductive grid loaded H‐dipole in both reflection and transmission modes	4
	4
Transmission‐type 1‐bit coding metasurfaces with linear‐to‐circular polarization conversion using coupling‐propagation‐decoupling unit cells	4
A linear tightly coupled dipole array with wide‐angle scanning	4
A new extraction flow of the s mall‐signal s witch‐HEMT model based on the parasitic resistance scanning algorithm	4
Compact Dual‐Band Band‐Pass Filter Using Single Multimode SIW Cavity With Independent Controllable Fractional Bandwidth	4
Metasurface‐enabled isolation between antenna arrays	4
A single‐layer dual‐polarization transmission metasurface for multi‐feeds and multi‐focus	4
Optimized coil turns of receiving ferrite core antenna for wireless magnetic inductive communication	4
	4
Subtractive Clustering–Assisted Surrogate Model to Fast Optimal Design of Traveling Wave Tubes	4
AnEH₂‐mode microstrip leaky‐wave antenna with single beam radiation and backward‐to‐forward scanning	4
Simultaneous matching, decoupling, and miniaturization in MIMO antenna by loading a folded cross resonator	3
A novel MS to SL vialess vertical transition for high‐performance substrate integrated filter	3
A self‐packaged SCPW negative group delay circuit and its integration with power divider	3
A Compact Ultralow‐Profile Wideband and High‐Efficiency Folded Transmitarray	3
Broadband radar cross‐section reduction using random chessboard coding metasurface	3
Design of Artificial Metamaterial Absorber Based on Stacking Method	3
Design of a metasurface filtering antenna with tunable radiation nulls	3
Abeam‐formed leaky‐waveantenna array withpower‐recyclingfeeding network	3
Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications	3
A high gain reduced side‐lobe miniaturized frequency and pattern reconfigurable planar array operating in higher‐order mode	3
Corporate‐fedadvanced microstrip arrays with improvedcross‐polarisolation: Design and engineering usingDGS‐integrationtechniques	3
A broadband compact filtering antenna forsub‐6 GHzbase station applications	3
Single‐layer dipole antenna with large angle beam deflection and frequency scanning capability	3
Subgigawatt Level X‐Band BWO Using Adiabatically Tapered SWS at Low Magnetic Field	3
Design of a broadband ultra‐thin metamaterial absorber with G‐type bent structure	3
A Learning‐Based Variational Backpropagation Method for Inverse Scattering Problems	3
Design and Development of Parasitic Elements Loaded Quadband Frequency and Pattern Reconfigurable Antenna	3
Estimation of QoT in an Operational WDM Transmission System Using Artificial Neural Networks With Deep SHAP and Kernel SHAP Algorithms	3
Systematic Analysis of Rotated Dual-Split Elliptical SRR with Band-Stop Characteristics	3
An injection molded circularly polarized endfire multibeam antenna with wide axial ratio beamwidth coverage using rhombic waveguide element	3
Compact Multilayered Bandpass Filter With High Selectivity and Four Transmission Zeros Using a Feedback Capacitor	3
Broadband dual‐band bandstop filters based on step‐impedance stubs and transmission‐line networks	3
A substrate integrated waveguide based dual‐band leaky‐wave antenna fed by TE ₁₀	3
Multiband hybrid MIMO DRA for Sub‐6 GHz 5G and WiFi ‐6 applications	3
Research on high‐efficiency optimization algorithm applied to near‐field effect error correction	3
Norman window slot antenna with sectoral feed backed by linear phase reflector for ultra wideband applications	3
A novel broadband l inear‐cross and l inear‐circular reflective polarizer based on interdigital capacitance loaded dipole for	3
A compact radio frequency identification tag antenna with loaded coupling rings for two‐side anti‐metal design	3
Miniaturized Quadband High-Temperature Superconducting Bandpass Filter with a Wide Frequency Ratio	3
RPM ‐loaded compact dual‐band circularly polarized antenna for GNSS application	3
A scanning beam antenna fed by a 7 × 8 Butler matrix for 5G applications	3
Design and analysis of dual‐band FSS based on equivalent circuit	3
A new wideband filtering power divider with ultra‐wide stopband using microstrip/slotline transitions	3
Investigation of impedance compensation in radio frequency circuits with bonding wire	3
Design and Implementation of a Novel Radar Cross Section Reduction Metasurface Covering 12.5-17.4 GHz and 20.5-36.2 GHz	3
Novel method for reshaping TM ₀₀ mode radiation patterns of rectangular patch antenna by using characteristic mo	3
An ultra‐wideband polarization insensitive frequency selective surface for shielding applications	3
3D ‐printed reflector antenna and metallization in Ka‐band	3
Mounted Director Element on Dual‐Band Vivaldi Antenna for Wireless Energy Harvesting Application	3
Electronically beam switched conformal microstrip array antenna for 5G applications	3
Design of miniaturized dual‐band filtering antenna with improved selectivity utilizing square complementary split ring resonator for 5G MM‐wave automobile applicatio	3
Research on the characteristics and equivalent circuits of left‐handed materials with the same manifestation	3
Design of a broadband high‐efficiency power amplifier through mixed strategy	3
Compact Slot Microstrip Patch Antenna Loaded with Open Metal Cavity for Microwave Hyperthermia	3
Suppression of cross‐band scattering effect of shared‐aperture base station antenna by using sparse FSS	3
Wideband, polarization independent electromagnetic wave absorber using cross arrow resonator and lumped SMD resistors for C and X band applications	3
Angular Stability Enhancement Using Phase Compensation Method for Frequency Selective Surface Design	3
Design of Rocket‐Borne Data Transmission System for Sounding Rocket	3
Design of a compact multifunctional power divider loaded with short‐ended stub	3
A Dual-Band Dual-Output Filtering Power Amplifier Based on High-Selectivity Filtering Impedance Transformer	3
An SISL dual‐band filtering antenna with parasitic strips for 5G applications	3
A dual wideband high gain 2 × 2 multiple‐input‐multiple‐output monopole antenna with an end‐launch connector model for 5G millimeter‐wave mobile applications	3
Ultra‐wide bandgap Al _0. ₁ Ga ₀ _.	3
Multi resonant slot antenna design to radiate fan‐shaped multi‐beam radiation pattern with the use of two‐dimensional perforated Luneburg lens	3
Wideband resonate cavity antenna with double‐layer metallic superstrate	3
A Novel Broadband ± 45° Dual-Polarized Cross-Dipole Antenna with Multimode R	3
A circularly polarized meander loop antenna for unmanned aerial vehicle satellite navigation system	3
Design and Characterization of a Compact Four-Element Microstrip Array Antenna for WiFi-5/6 Routers	3
Backfire Patch Antenna with Enhanced Gain and Low Side-Lobe Level under Triple-Mode Resonance	3
A flexible low insertion‐loss wideband millimeter‐wave crossover based on ridge gap waveguide technology	3
Band‐notched frequency‐selective absorber with linear polarization rotation function	3
A tunable ultra‐wideband superheterodyne radio frequency receiver with high‐image‐rejection levels	3
Addressing dynamics in radio frequency tomography	3
Theory and design of quasi‐lumped‐element wideband filtering phase shifters	3
A novel and efficient impedance matching technique based on fragment discrete structure and genetic algorithm	3
L _G 55 nm T‐gate InGaN / GaN channel based high electron mobility transistors<	3
Wide E-Plane Beamwidth Microstrip Patch Antenna Using H-Shaped Gap-Coupling with Three Parasitic Patches for the K-Band	3