Abstract
In this paper, a miniaturized filter with double-sided selectivity and wide out-of-band rejection is presented. The slow-wave and negative cross-coupling structures are effectively adopted to realize an ultra-compact K-band filter with two symmetric transmission zeros. Starting from a bandpass filter configured for a center frequency of 18.5 GHz and the main-line couplings that only exhibits a good out-of-band rejection of 30 dB up to 30 GHz, the two proposed negative cross-couplings enable the steep roll-off out-of-band rejections as well as low in-band insertion losses of 1.7 dB and 2.4 dB. The designed structures are utilizing both the additive manufacturing and PCB-based technology which in turn, provide a simple, low-profile, and cost-effective fabrication process for highly integrated RF systems, particularly in satellite applications.
Original language | English |
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Title of host publication | 2021 IEEE Asia-Pacific Microwave Conference, APMC 2021 |
Pages | 256-258 |
Number of pages | 3 |
ISBN (Electronic) | 9781665437820 |
DOIs | |
Publication status | Published - 28 Nov 2021 |
Event | 2021 IEEE Asia-Pacific Microwave Conference: APMC 2021 - Brisbane, Virtual, Australia Duration: 28 Nov 2021 → 1 Dec 2021 |
Conference
Conference | 2021 IEEE Asia-Pacific Microwave Conference |
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Abbreviated title | APMC 2021 |
Country/Territory | Australia |
City | Brisbane, Virtual |
Period | 28/11/21 → 1/12/21 |
Keywords
- K-band filter
- Negative coupling
- Slow-wave
- Transmission zero
ASJC Scopus subject areas
- Electrical and Electronic Engineering