Short-Ended Self-Coupled Ring Resonator and Its Application for Balanced Filter Design

Wang, Hui; Tam, Kam‐Weng; Ho, Sut‐Kam; Kang, Wei; Wu, Wen

doi:10.1109/lmwc.2014.2309081

Cited by 28 publications

(17 citation statements)

References 13 publications

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“…The measured CMRR at center frequency is about 30.19dB. The whole circuit size of the proposed balanced bandpass filter is 0.38λ g × 0.58λ g , which has a circuit size reduction of 14.61%, 74.80% and 83.12% compared with [5]- [7], respectively. Where λ g is the guided wavelength at 2.35GHz.…”

Section: Fabrication and Measurementmentioning

confidence: 99%

“…In order to improve the selectivity of DM response, λ/4 stubs had been replaced by 3λ/4 stubs in [3] and [4], and transmission zeros had been realized. In [5], parallel coupled lines were utilized in balanced BPF design for achieving the desired CM suppression by placing short-circuited self-coupled ring resonator between the differential lines, while the DM passband kept independent. In [6], balanced BPFs with simple T-shaped structures were proposed, while in [7] and [8], balanced BPFs with dual-mode and multi-mode resonators had been implemented, respectively.…”

Section: Introductionmentioning

confidence: 99%

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High Selective Balanced Bandpass Filters Using End-Connected Conductor-Backed Coplanar Waveguide

Xiao¹,

Qi²,

Wang³

et al. 2019

IEEE Access

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In this paper, an end-connected conductor-backed coplanar waveguide (CBCPW) balanced bandpass filter and a size reduction one with adjustable multiple transmission zeros have been developed by using the separated electric and magnetic coupling, and quarter-wavelength short-circuited stubs. The differential mode (DM) and the common mode (CM) equivalent transmission line circuits have been modeled and verified, and the DM/CM parts can be designed individually. The proposed CBCPW balanced bandpass filters have been fabricated and measured, and their advantages of multiple transmission zeros, high out-ofband suppression, and high common mode suppression characteristics have been demonstrated. INDEX TERMS Conductor-backed coplanar waveguide, balanced bandpass filter, separated electric and magnetic coupling, transmission zeros.

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Section: Fabrication and Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Selective Balanced Bandpass Filters Using End-Connected Conductor-Backed Coplanar Waveguide

Xiao¹,

Qi²,

Wang³

et al. 2019

IEEE Access

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“…Therefore, all kinds of differential BPFs have been widely developed in recent years. To restrain the common-mode (CM) transmission, magnetically coupled resonators [2], shortended self-coupled ring resonator [3], defected ground structures (DGS) [4], [5] and balanced coupled-line structure [6] are used to design differential BPFs. Their characteristics are very good, but these structures only work on single-band.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Differential Bandpass Filters Using Quadruple-Mode Stubs-Loaded Ring Resonator With Intrinsic Common-Mode Suppression for 5G

2020

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“…It can provide both functions of differential-mode (DM) passband selectivity and commonmode (CM) rejection has been receiving increased attention. Over the past few years, much effort has been made in the exploration of various DM BPFs [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Although the DM BPF exhibits sharp frequency selectivity and high CM suppression, the involved design configuration and procedure are very complicated. Besides, another DM BPF based on short-ended self-coupled ring resonator is presented in [2]. By periodically and symmetrically arranging short-ended SCRRs between the microstrip differential lines, the common-mode suppression can be realized at desired frequency easily with wideband differential-mode passband.…”

Section: Introductionmentioning

confidence: 99%

A Compact Differential-Mode Wide Stopband Bandpass Filter with Good and Wideband Common-Mode Suppression

Zhang

Zhao

Yan

2018

Wireless Communications and Mobile Computing

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This letter presents a microstrip differential-mode (DM) bandpass filter (BPF) with high and wide stopband suppression under both DM and common-mode (CM) operations. A new coupling topology is formed up to realize the DM BPF by integrating a pair of /2 microstrip transmission lines and two multimode resonators. The DM and CM equivalent half-circuits are established to explain the operating principal. For validation, a DM BPF operating at 2.2 GHz is implemented. Experimental results indicate that the presented DM BPF exhibits not only sharp DM passband selectivity but also deep and ultrawide stopband suppression of more than 30 dB for both DM and CM.

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Short-Ended Self-Coupled Ring Resonator and Its Application for Balanced Filter Design

Cited by 28 publications

References 13 publications

High Selective Balanced Bandpass Filters Using End-Connected Conductor-Backed Coplanar Waveguide

High Selective Balanced Bandpass Filters Using End-Connected Conductor-Backed Coplanar Waveguide

Dual-Band Differential Bandpass Filters Using Quadruple-Mode Stubs-Loaded Ring Resonator With Intrinsic Common-Mode Suppression for 5G

A Compact Differential-Mode Wide Stopband Bandpass Filter with Good and Wideband Common-Mode Suppression

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