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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.19 [2012] >
IJEMS Vol.19(5) [October 2012] >
| Title: | Microstrip even-mode half-wavelength SIR based I-band interdigital bandpass filter |
| Authors: | Maharjan, Ram Krishna
Kim, Nam-Young |
| Keywords: | Microstrip stepped impedance resonator
Even-mode SIR
Half-wavelength SIR
Interdigital resonators
Bandpass filter
I-band communication systems |
| Issue Date: | Oct-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In this paper, a new microstrip interdigital
even-mode half-wavelength type stepped impedance resonator (SIR) based bandpass
filter (BPF) for I-band applications is presented. The bandpass filter
characteristic depends on the self-resonant frequency of the interdigital
resonated arms. The combination of the interdigital arm structures behaves as
an interdigital capacitance coupling between port 1 and port 2. The self
generated capacitive and inductive reactances of the interdigital resonators
interacted in order to obtain a resonance at 9.4 GHz. The resonant frequency
and the bandwidth of the filter are directly optimized as a result of the
physical arrangement of the interdigital resonators. The measured insertion
loss (S21) and the return loss (S11) are –0.85 dB and –28.0
dB, respectively, at the 9.4 GHz resonant frequency. |
| Page(s): | 299-303 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.19(5) [October 2012]
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