Browsing by Author "Chen, Ting-An"

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Parallel-Coupled Filters Using Stepped-Impedance Coupled Lines
(2016-01-01)
Chen, Ting-An
;
Wei, Shih-Chiang
;
Chou, Po-Jong
;
Chang, Chi-Yang
;
電機工程學系
A stepped-impedance coupled line (SICLN) is proposed in this paper. The proposed SICLN can be equivalent to a conventional quarter-wave coupled line section at the center frequency. The proposed SICLN is applied to half-and quarter-wave parallel-coupled filters. The proposed filters show both size reduction and better spurious responses.
V - and W - Band Substrate Integrated Waveguide (SIW) Mechanical Switch
(2018-06-01)
Wei, Shih-Chiang
;
Yang, Chin-Hao
;
Chen, Yen-Cheng
;
Chen, Ting-An
;
Chang, Chi-Yang
This paper presents high-isolation single-polesingle-throw (SPST) and single-pole-double-throw (SPDT) substrate integrated waveguide (SIW) mechanical switches in V-and W-bands. Four via holes with the proposed ring-andcross etching patterns on the top side are placed in the middle of SIW path to block or pass the waves. As the ring-and-cross etching patterns being short-circuited, the via holes block the waves just like stockades do, in other words, turning the switch to OFF mode. And the ring-and-cross etching pattern makes the via holes invisible, turning the switch to ON mode. The V-and W-band SIW SPST and SPDT switches are designed and fabricated. The switches show the measured performances of better than 45-dB isolation for SPST and better than 50-dB isolation for SPDT, for V-band operation, and a better than 50-dB isolation for both SPST and SPDT for W-band operation.