Abstract
This article presents a compact microstrip bandpass filter (BPF) design for the 2.45 and 5.25 GHz wireless local-area network (WLAN) applications. U-shaped quarter-wavelength stepped-impedance resonators (λ/4 SIRs), for which the circuit size is small and the second resonant frequency can he tuned over a wide range, are adopted in the BPF design. It is shown that the first spurious passbands of the resultant filters are farther away from their second passbands than are those of the corresponding filters using half-wavelength SIRs. Experiments on a second-order and a fourth-order BPF are conducted for validating the filter performance. Good agreement between the measured and the simulated results are observed.
| Original language | English |
|---|---|
| Pages (from-to) | 164-168 |
| Number of pages | 5 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 49 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 Jan 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
}
Design of compact microstrip dual-band bandpass filters with λ/4 stepped-impedance resonators. / Jhuang, He Kai; Lee, Ching-Her; Hsu, Chung I.G.
In: Microwave and Optical Technology Letters, Vol. 49, No. 1, 01.01.2007, p. 164-168.Research output: Contribution to journal › Article
TY - JOUR
T1 - Design of compact microstrip dual-band bandpass filters with λ/4 stepped-impedance resonators
AU - Jhuang, He Kai
AU - Lee, Ching-Her
AU - Hsu, Chung I.G.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - This article presents a compact microstrip bandpass filter (BPF) design for the 2.45 and 5.25 GHz wireless local-area network (WLAN) applications. U-shaped quarter-wavelength stepped-impedance resonators (λ/4 SIRs), for which the circuit size is small and the second resonant frequency can he tuned over a wide range, are adopted in the BPF design. It is shown that the first spurious passbands of the resultant filters are farther away from their second passbands than are those of the corresponding filters using half-wavelength SIRs. Experiments on a second-order and a fourth-order BPF are conducted for validating the filter performance. Good agreement between the measured and the simulated results are observed.
AB - This article presents a compact microstrip bandpass filter (BPF) design for the 2.45 and 5.25 GHz wireless local-area network (WLAN) applications. U-shaped quarter-wavelength stepped-impedance resonators (λ/4 SIRs), for which the circuit size is small and the second resonant frequency can he tuned over a wide range, are adopted in the BPF design. It is shown that the first spurious passbands of the resultant filters are farther away from their second passbands than are those of the corresponding filters using half-wavelength SIRs. Experiments on a second-order and a fourth-order BPF are conducted for validating the filter performance. Good agreement between the measured and the simulated results are observed.
UR - http://www.scopus.com/inward/record.url?scp=33845971936&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845971936&partnerID=8YFLogxK
U2 - 10.1002/mop.22094
DO - 10.1002/mop.22094
M3 - Article
AN - SCOPUS:33845971936
VL - 49
SP - 164
EP - 168
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
IS - 1
ER -