Abstract
This work presents a new topology for the design of bandpass elliptic filters employing inductive windows and dielectric objects. The proposed filtering structure combines, for the first time, the modified TE102 resonating mode with the modified TE201 mode. The TE201 mode is excited by placing a wide dielectric post inside a waveguide cavity. The main advantage of the new topology is that two transmission zeros can be synthesized in the insertion loss response of the filter, for a second order structure. Also there is a high flexibility on the location of the transmission zeros. They can be synthesized along the frequency axis for maximum selectivity, or as a pair of complex poles for phase equalization.
Original language | English (US) |
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Title of host publication | 2008 IEEE MTT-S International Microwave Symposium Digest, MTT |
Pages | 635-638 |
Number of pages | 4 |
DOIs | |
State | Published - Dec 12 2008 |
Externally published | Yes |
Event | 2008 IEEE MTT-S International Microwave Symposium Digest, MTT - Atlanta, GA, United States Duration: Jun 15 2008 → Jun 20 2008 |
Other
Other | 2008 IEEE MTT-S International Microwave Symposium Digest, MTT |
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Country | United States |
City | Atlanta, GA |
Period | 6/15/08 → 6/20/08 |
Keywords
- Dielectric posts
- Doublet topology
- Inductive filters
- Transmission zeros
- Transversal filters
- Waveguide filters
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering