Abstract
A bandpass filter constructed by placing a TM01δ dielectric ring around a resonator post of a conventional combline resonator in a TE01 cut-off rectangular waveguide is presented. On the basis of a rigorous analysis by TLM technique, the coupling coefficients are determined accurately from the calculation of two resonant frequencies fe and fm when the structurally symmetric plane is short- and open-circuited. A fourth order elliptic function filter is fabricated. The measured frequency responses of the filter agree with the theory.
Original language | English |
---|---|
Pages (from-to) | 117-120 |
Number of pages | 4 |
Journal | SAIEE Africa Research Journal |
Volume | 96 |
Issue number | 2 |
Publication status | Published - Mar 2005 |
All Science Journal Classification (ASJC) codes
- Engineering(all)