TY  - CONF
EP  - 516
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044742292&doi=10.1109%2fAPMC.2017.8251494&partnerID=40&md5=cc431ed4e075e78747dc7ab0e8ec86a8
A1  - Zahari, M.K.
A1  - Ahmad, B.H.
A1  - Wong, P.W.
A1  - Shairi, N.A.
SN  - 9781538606407
PB  - Institute of Electrical and Electronics Engineers Inc.
Y1  - 2017///
KW  - Crystal resonators; Microwave filters; Notch filters; Resonators; Semiconductor diodes
KW  -  absorptive; Band pass; Band-stop; Low-loss; Switchable filters
KW  -  Bandpass filters
ID  - scholars8578
TI  - Switchable bandstop to bandpass filter using parallel-coupled resonator
SP  - 513
N1  - cited By 6; Conference of 2017 IEEE Asia Pacific Microwave Conference, APMC 2017 ; Conference Date: 13 November 2017 Through 16 November 2017; Conference Code:134147
N2  - 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.
AV  - none
ER  -