Switchable bandstop to bandpass filter using parallel-coupled resonator
A new prototype of switchable bandstop to bandpass filter was designed and fabricated by using parallel-coupled lossy resonator. The lossy resonator topology was used to partially compensate for the losses. The fundamentals of having two lossy Q resonator structures are that it exhibits a bandpass f...
| Main Authors: | Zahari, M.K., Ahmad, B.H., Wong, P.W., Shairi, N.A. |
|---|---|
| Format: | Article |
| Institution: | Universiti Teknologi Petronas |
| Record Id / ISBN-0: | utp-eprints.21856 / |
| Published: |
Institute of Electrical and Electronics Engineers Inc.
2018
|
| Online Access: |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044742292&doi=10.1109%2fAPMC.2017.8251494&partnerID=40&md5=cc431ed4e075e78747dc7ab0e8ec86a8 http://eprints.utp.edu.my/21856/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: |
A new prototype of switchable bandstop to bandpass filter was designed and fabricated by using parallel-coupled lossy resonator. The lossy resonator topology was used to partially compensate for the losses. The fundamentals of having two lossy Q resonator structures are that it exhibits a bandpass filter, where the parallel-coupled resonator is disconnected with the λ/4 wavelength. PIN diodes are used to change the filter's response. In the experiments, the filter exhibited a high-Q bandstop response when the PIN diodes were switched 'ON' with an operating frequency of 2.4GHz, an attenuation of 75dB and return loss S11 > 20dB. The lossy bandpass filter was produced when the PIN diodes were switched 'OFF'. The theoretical analysis together with the fabrication results were presented in this paper. © 2017 IEEE. |
|---|