Results 21 to 30 of about 668 (183)
Very Compact Diplexer Based on Dual-Mode Dielectric TM-Mode Resonators [PDF]
, 2023 A very compact in-line C-band diplexer is reported in this letter based on dual-mode dielectric TM-mode resonators in planar coupling configuration.
Widaa, Abdulrahman Hassan Ahmed +3 more
core +1 more source
Vertical Waveguide-to-Microstrip Self-Diplexing Transition for Dual-Band Applications
IEEE Microwave and Wireless Components Letters, 2022 This letter presents a novel vertical waveguide-to-microstrip self-diplexing transition for dual-band applications. The transition is realized with standard printed circuit board (PCB) manufacturing processing, making it suitable for mass production and practical applications. A standard waveguide is screwed on the topside of the stack-up.
Arnieri E. +3 more
openaire +1 more source
RETRACTED: A Survey of Five Generations of MIMO Multiband Base Station Antennas
Radio Science, Volume 58, Issue 7, July 2023., 2023 Abstract As telecommunication systems evolve, there is an increasing demand for multi‐band MIMO base‐station antennas. Antenna arrays are generally used to support multiple frequencies with multiple ports in a compact size. However, this can result in significant degradation in scattering patterns and return loss/port isolation due to the close ...
Hafiz Usman Tahseen +2 more
wiley +1 more source
Design of Multilayer Dual-Band BPF and Diplexer with Zeros Implantation Using Suspended Stripline
IEICE Transactions on Electronics, 2012 Min-Hua Ho
exaly +2 more sources
Broadband dual‐podal multilayer Vivaldi antenna array for remote sensing applications
IET Microwaves, Antennas &Propagation, Volume 17, Issue 7, Page 505-517, June 2023., 2023 A novel broadband dual‐podal multilayer Vivaldi antenna array for remote sensing application is proposed in this manuscript. The design demonstrates a measured maximum gain of 9.33 dBi, Half Power Beam Width of 126.5° in the H plane, and a maximum Front‐to‐Back ratio of 14.36 dB with an overall antenna size of 29 × 21 × 1.63 mm.
Muhammad Nasir +5 more
wiley +1 more source
Compact Dual Band Feed System for a Multifrequency Atmospheric Radar
IEEE Open Journal of Antennas and Propagation, 2022 The design, simulations and measurement results of a dual frequency feed horn operating at 35.75 GHz (Ka-band) and 94.05 GHz (W-band) are presented. The horn is designed to be used as a feed for a multifrequency atmospheric radar.
Srinivas Nagaraja +3 more
doaj +1 more source
Combined signal‐interference/split‐type microwave multi‐band bandpass filters
IET Microwaves, Antennas &Propagation, Volume 17, Issue 7, Page 583-593, June 2023., 2023 Two classes of RF/microwave planar quad‐band bandpass filters (BPFs) that simultaneously exploit transversal signal‐interference and multi‐passband‐splitting mechanisms are reported or for experimental–demonstration purposes, two microstrip prototypes are developed and tested. Besides, as a further application, a two‐layer balanced‐circuit version with
Mohamed Malki +2 more
wiley +1 more source
An RF coil design to enable quintuple nuclear whole‐brain MRI
Magnetic Resonance in Medicine, Volume 89, Issue 5, Page 2131-2141, May 2023., 2023 Purpose To bring metabolic imaging based on multi‐NMR toward practical use from the RF hardware perspective. Methods A highly integrated RF coil is designed for whole‐brain MRI and MRS targeted to five nuclear species: 1H, 19F, 31P, 23Na, and 13C. Dipole antennas and closely loaded local receiver loops are combined in this setup.
Jiying Dai +5 more
wiley +1 more source
IET Microwaves, Antennas &Propagation, Volume 17, Issue 1, Page 13-25, January 2023., 2023 Abstract An integral equation technique for the analysis of multiport H‐plane microwave circuits composed of an unlimited number of arbitrarily shaped metallic and/or dielectric elements is proposed. The structure under study is divided into different regions after the application of the surface equivalence principle.
Fernando D. Quesada Pereira +4 more
wiley +1 more source
International Journal of RF and Microwave Computer-Aided Engineering, Volume 2023, Issue 1, 2023., 2023 In this brief, a novel filtering impedance transformer with good selectivity and high termination impedance is proposed, of which close‐formed design equations are derived and effectively verified. Then, a dual‐band dual‐output filtering power amplifier (PA) operating at 2.4‐2.6 GHz and 3.4‐3.6 GHz is designed based on the proposed filtering impedance ...
Shuchen Zhen +5 more
wiley +1 more source