@inbook{0e5fe93076164715b6509537f9a22ad3,
title = "Multi-Band Differential Bandpass Filters with Quasi-Elliptic-Type Passbands and Multi-Transmission Zero Common-Mode Suppression",
abstract = "In this paper, the RF design of differential quasi-elliptic-type dual-and tri-band bandpass filters (BPFs) is reported. They are based on series-cascaded multi-resonant cells that result in: i) quasi-elliptic-type passbands in the differential-mode of operation that are shaped by 3N poles and 3N-1 transmission zeros (TZs)N is the number of bandsand ii) high common mode (CM) suppression through multi-TZ generation5N-1 in totaland resistively-loaded poles. Coupling-routing diagrams that facilitate the RF design of these type of filters with standard coupled-resonator synthesis are presented. For proof-of-concept demonstration purposes, a dual-band microstrip prototype was manufactured and measured with the following RF performance characteristics: passbands centered at 2.53 and 3.49 GHz, fractional bandwidths of 13 and 12\%, and minimum in-band insertion loss levels of 1.27 and 1.43 dB, respectively. Moreover, the CM is suppressed by >52 and >38 dB at the center of the bands.",
keywords = "Balanced filter, bandpass filter, common mode suppression, differential filter, dual-band filter, multi-band filter.",
author = "Dakotah Simpson and Dimitra Psychogiou",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 ; Conference date: 02-06-2019 Through 07-06-2019",
year = "2019",
month = jun,
doi = "10.1109/mwsym.2019.8700786",
language = "English",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1027--1030",
booktitle = "2019 IEEE MTT-S International Microwave Symposium, IMS 2019",
address = "United States",
}