Results 61 to 70 of about 668 (183)

Realization of a Wide Stopband Filter Using the Weakest Electric Field Method and Electromagnetic Hybrid Coupling Method

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2024, Issue 1, 2024.
To enhance filter performance in terms of stopband, we propose a wide‐stopband substrate‐integrated waveguide filter based on the rejection of higher‐order modes. The filter establishes the inner and outer coupling windows at the mode’s weakest electric field to achieve mode suppression.
Xiaohei Yan, Minjie Guo, Guoan Wang
wiley   +1 more source

V-Band Groove Gap Waveguide Diplexer [PDF]

, 2015
In this paper a novel V-band diplexer, based on the newly introduced groove gap waveguide technology is presented. The diplexer structure consists of an H-plane T-junction and two RX and TX filters having 1.5% relative bandwidth at 59.5GHz and 62.5GHz ...
Zaman, Ashraf Uz, Uz Zaman, Ashraf, Rezaee, Morteza, Kildal, Per-Simon   +3 more
core  

DUAL BAND HIGH EFFICIENCY CLASS CE POWER AMPLIFIER BASED ON CRLH DIPLEXER [PDF]

Progress In Electromagnetics Research, 2009
In this paper, the most adequate architecture to implement dual frequency ampliflers is shown. Composite Right/Left Hand (CRLH) and Extended Composite Right/Left Hand (ECRLH) transmission lines are studied and evaluated to flnd the most suitable structure for dual band power ampliflers. As an example, the performance of a class CE amplifler, working in
Jose L. Jimenez Martin, Vicente Gonzalez-Posadas, Jose E. Gonzalez-Garcia, Francisco J. Arques-Orobon, Luis Enrique Garcia Munoz, Daniel Segovia-Vargas   +5 more
openaire   +1 more source

New Miniature Narrow Band Microstrip Diplexer for Recent Wireless Communications

, 2023
Using Kappa substrate material, a compact microstrip diplexer is developed in this research with two separate channels based on the coupled junction and two bandpass filters functioning in independent frequency bands.
Kadhum Al-Majdi, Yaqeen Sabah Mezaal
core   +1 more source

Switchless Multi-Octave Tune-All BPF Manifold Using Low-Pass/High-Pass Diplexer Junctions

IEEE Journal of Microwaves
This paper presents an RF-switchless two-bandpass filter (BPF) manifold with continuous multi-octave center frequency (fcen) and bandwidth (BW) tuning capabilities that are demonstrated in a wide range of frequency range 1 (FR1) bands, spanning from L ...
Mohammed R. A. Nasser, Dimitra Psychogiou   +1 more
doaj   +1 more source

A NOVEL METHOD FROM BANDPASS TO DUAL-BAND FOR MICROWAVE FILTER AND DIPLEXER DESIGN

Progress In Electromagnetics Research Letters, 2015
A novel method for a dual-band filter and quad-channel diplexer design is presented in this paper. This method, by altering the gap between resonators, realizes a transformation from bandpass to dual-band for the filter and diplexer. At first, a high selectivity bandpass filter (BPF) with four controllable transmission zeros (TZs) is designed.
Feng Qiu, Zhenhua Tang, Jian-Quan Huang, Dajun Lei, Ming Yao   +4 more
openaire   +1 more source

Analysis and Design of a Substrate Integrated Waveguide Multi-Coupled Resonator Diplexer [PDF]

, 2017
A microwave diplexer achieved by coupling a section of a dual-band bandpass filter onto a section of two single-bands (i.e. transmit and receive) bandpass filters is presented. This design eliminates the need for employing external non-resonant junctions
Nwajana, Augustine
core   +1 more source

A new microstrip diplexer using open-loop resonators

Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2014
In this paper, a new microstrip diplexer using open loop resonators with compact size and high isolation is designed and fabricated for the WLANs (IEEE 802.11b/g at 2.4 GHz and IEEE 802.11a at 5.2 GHz) applications.
A. Chinig, J. Zbitou, A. Errkik, L. Elabdellaoui, A. Tajmouati, A. Tribak, M. Latrach   +6 more
doaj  

Energy Autonomous Dual-Band Antenna System for RFID-Based Real-Time Battery Level Monitoring

IEEE Open Journal of Antennas and Propagation
This paper presents an energy-autonomous antenna system that combines energy harvesting (EH) with radio frequency identification (RFID) communication to measure the battery charge level in real time.
Braden P. Smyth, Hamed Khoshniyat, Mahdi Barati, Samuel Clark, Rashid Mirzavand, Ashwin K. Iyer   +5 more
doaj   +1 more source

Dual-band predistortion power amplifier for digital cellular and IMT-2000 base-station application

, 2005
This paper proposes a dual-band predistortion power amplifier using diplexer for digital cellular (f0=880MHz) and IMT-2000(f0=2140MHz) base station. Each high power amplifier is linearized by using predistortion method.
Jeong, Yong-Chae, Choi, Heungjae, Kim, Young, Kim, Chul-Dong, Jeong, Hee-Young, Lim, Jong-Sik   +5 more
core   +1 more source