Design of pseudoelliptic filters with controllable transmission zeros using high-Q double-layer suspended stripline resonators

Xia, Lei1; Wu, Bian1; Song, Lei1; Chen, Jian-zhong1; Cheng, Qingsha S.2

2019-08

10.1002/mmce.21785

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING   影响因子和分区

1096-4290

1099-047X

This article presents a novel synthesis-based design procedure for pseudoelliptic filters using high-Q double-layer suspended stripline (DSSL) resonators. The DSSL resonator consists of an air-filled cavity and a suspended thin substrate with metallic top and bottom strips connected using metallic via hole. The resonator achieves a much higher unloaded quality factor than the single-layer SSL resonator. Resonant characteristics and coupling properties of the innovative DSSL resonator are analyzed in detail. In addition, a systematic design procedure of the pseudoelliptic DSSL filter is presented using two examples of sixth-order DSSL filters with two TZs at upper or lower stopband. The procedure is completed by establishing a relationship between the coupling coefficients and the physical structure dimensions based on an efficient full-wave simulation. The established relationship allows accurately obtaining the physical dimensions of the filter from the electrical parameters calculated by the synthesis method. Furthermore, for demonstration of the proposed design procedure, two filter prototypes are synthesized, designed, fabricated, and measured. The synthesized, simulated, and measured results show an excellent agreement.

double-layer suspended stripline (DSSL) high quality factor high selectivity transmission zero (TZ)

SCI ; EI

英语

其他

Shaanxi Youth Science and Technology Star Project[2017KJXX-32]

Computer Science ; Engineering

Computer Science, Interdisciplinary Applications ; Engineering, Electrical & Electronic

WOS:000474627600021

WILEY

20191706816412

Design ; Elliptic filters ; Resonators ; Strip telecommunication lines

Electric Filters:703.2

ENGINEERING

Web of Science

1.Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian, Shaanxi, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China

Xia, Lei,Wu, Bian,Song, Lei,et al. Design of pseudoelliptic filters with controllable transmission zeros using high-Q double-layer suspended stripline resonators[J]. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING,2019,29(8).

Xia, Lei,Wu, Bian,Song, Lei,Chen, Jian-zhong,&Cheng, Qingsha S..(2019).Design of pseudoelliptic filters with controllable transmission zeros using high-Q double-layer suspended stripline resonators.INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING,29(8).

Xia, Lei,et al."Design of pseudoelliptic filters with controllable transmission zeros using high-Q double-layer suspended stripline resonators".INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING 29.8(2019).