Application of a Stub-Loaded Square Ring Resonator for Wideband Bandpass Filter Design
Abstract
:1. Introduction
1.1. Related Work
1.2. Contributions
1.3. Organization of the Paper
2. Analysis of Resonant Mode
3. Filter Design
3.1. A Wideband Filter with a Wide Stopband
3.2. A Dual Wideband Filter with a Notched Stopband
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Ref. [5] | Ref. [6] | Ref. [11] | Ref. [12] | Ref. [14] | Ref. [15] | Example 1 | Example 2 | |
---|---|---|---|---|---|---|---|---|
Center frequency (GHz) | 5 | 3 | 2.3 | 1 | 1 | 4/8 | 4.5 | 4.1/8.0 |
|S11| (dB) | 12 | 11.7 | >13 | 15 | 15 | 10 | 10 | 10 |
|S21| (dB) | 1.2 | 2.1 | 0.35 | 1 | 1 | 1/2 | 1.6 | 1.2/2.8 |
3 dB FBW (%) | 100 | 107 | 80 | 123 | 123 | 42/58 | 60 | 46/55 |
Circuit Size (λg × λg) | Unknown | 0.89 × 0.46 | 0.53 × 0.43 | 0.17 × 0.14 | 0.17 × 0.14 | 0.70 × 0.28 | 0.28 × 0.09 | 0.31 × 0.03 |
Number of notched bands | 1 | 1 | 2 | 0 | 0 | 1 | 0 | 1 |
Wide stopband | No | No | No | Yes | No | No | Yes | No |
Defected ground | Yes | Yes | No | No | No | No | No | No |
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Zhang, P.; Liu, L.; Chen, D.; Weng, M.-H.; Yang, R.-Y. Application of a Stub-Loaded Square Ring Resonator for Wideband Bandpass Filter Design. Electronics 2020, 9, 176. https://doi.org/10.3390/electronics9010176
Zhang P, Liu L, Chen D, Weng M-H, Yang R-Y. Application of a Stub-Loaded Square Ring Resonator for Wideband Bandpass Filter Design. Electronics. 2020; 9(1):176. https://doi.org/10.3390/electronics9010176
Chicago/Turabian StyleZhang, Ping, Liqin Liu, Deli Chen, Min-Hang Weng, and Ru-Yuan Yang. 2020. "Application of a Stub-Loaded Square Ring Resonator for Wideband Bandpass Filter Design" Electronics 9, no. 1: 176. https://doi.org/10.3390/electronics9010176
APA StyleZhang, P., Liu, L., Chen, D., Weng, M.-H., & Yang, R.-Y. (2020). Application of a Stub-Loaded Square Ring Resonator for Wideband Bandpass Filter Design. Electronics, 9(1), 176. https://doi.org/10.3390/electronics9010176