Microwave Diplexer Purely Based on Direct Synchronous and Asynchronous Coupling
Loading...
Date
2016-06
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Altmetrics
Abstract
A diplexer realized purely based on direct coupling is presented. No cross-coupling is involved in the design process. The microwave diplexer is achieved by coupling a dual-band bandpass filter onto two individual channel filters. This design eliminates the need for employing external junctions in diplexer design, as opposed to the conventional design approach which requires separate junctions for energy distribution. A 10-pole (10th order) diplexer has been successfully designed, simulated, fabricated and measured. The diplexer is composed of 2 poles from the dual-band filter, 4 poles from the Tx bandpass filter, and the remaining 4 poles from the Rx bandpass filter. The design was implemented using synchronously and asynchronously tuned microstrip square open-loop resonators. The simulation and measurement results show that an isolation of 50 dB is achieved between the diplexer Tx and Rx bands. The minimum insertion loss is 2.88 dB for the transmit band, and 2.95 dB for the receive band.
Description
Citation
Radioengineering. 2016 vol. 25, č. 2, s. 247-252. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2016/16_02_0247_0252.pdf
http://www.radioeng.cz/fulltexts/2016/16_02_0247_0252.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en