𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A compact bandpass filter using interdigital and step-impedance hairpin resonators

✍ Scribed by Cheng-Hsing Hsu; Chung-I. G. Hsu; Cheng-Chi Yu; Hsuan-An Ho

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
296 KB
Volume
52
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

A four-pole elliptic function bandpass filter is designed using miniaturized microstrip interdigital hairpin resonator and stepimpedance hairpin resonator. Miniaturization hairpin resonators are realized by using interdigital structure and step-impedance structure having parallel coupled lines. The full-wave simulator IE3D is used to design the compact hairpin resonator and to calculate the coupling coefficient of the basic coupling strictures. The response of the fabricated filters using Al 2 O 3 (e r ¼ 9.7, Q Â f ¼ 350000 GHz) and 0.6Sm(Co 1/2 Ti 1/2 )O 3 -0.4CaTiO 3 (e r ¼ 37, Q Â f ¼ 43000 GHz) dielectric substrates are designed at a center frequency of 2 GHz. The compact size and the performance of this class of filter have been demonstrated.

📜 SIMILAR VOLUMES

Compact microstrip bandpass filter using
Compact microstrip bandpass filter using modified stepped-impedance hairpin resonator
✍ Wen-Hua Tu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 352 KB

## Abstract A modified compact stepped‐impedance hairpin resonator using an interdigital capacitor and its application to a bandpass filter design are presented. In comparison to the coupled line of a conventional stepped‐impedance hairpin resonator, the interdigital capacitor of the proposed reson

Compact dual-band bandpass filter using
Compact dual-band bandpass filter using stepped impedance resonators
✍ He-Ming Xu; Zhong-Yin Xiao; Hong-Hong Hu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 204 KB

## Abstract A new dual‐band bandpass filter (BPF) for 2.4/5.2 GHz WLAN systems using two‐stepped impedance resonators is presented. With new properly coupled structure, this filter appears very compact and easy to be fabricated. Measured results show that this BPF has low insertion loss of 0.3 dB a

A novel compact microstrip bandpass filt
A novel compact microstrip bandpass filter using folded stepped impedance resonators
✍ Tao Yang; Ruimin Xu; Lei Xia; Yunchuan Guo 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 219 KB

## Abstract A folded quarter‐wavelength stepped impedance resonator (SIR) is proposed with a largely reduced size. A bandpass filter with center frequency of 1.85 GHz using the SIRs is designed, fabricated, and measured. This compact filter covers an area less than 10 mm × 10 mm, which makes it sui

A compact dual-band bandpass filter usin
A compact dual-band bandpass filter using meandering stepped impedance resonators
✍ Fu-Chang Chen; Qing-Xin Chu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 204 KB

## Abstract We propose a compact dual band bandpass filter (BPF) using meandering stepped impedance resonators (SIRs). By appropriately selecting the impedance ratio (K) of the SIR, the harmonic frequencies can be tuned for generating the dual‐passband response. Using this structure, the bandwidth

Compact triple-band bandpass filter usin
Compact triple-band bandpass filter using pseudointerdigital trisection stepped impedance resonators
✍ Fu-Chang Chen; Qing-Xin Chu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 200 KB

## Abstract This letter presents a compact triple‐band bandpass filter using pseudointerdigital trisection stepped impedance resonators (SIR). By tuning the impedance ratio and physical length of trisection SIRs, the BPF has good triple‐band performances at 1.57‐/2.45‐/5.25‐GHz and high isolation a

Design of a compact dual-band bandpass f
Design of a compact dual-band bandpass filter using trisection stepped impedance resonators
✍ Sheng-Hsiung Chang; Min-Hang Weng; Hon Kuan 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 256 KB

## Abstract We propose a compact dual band bandpass filter (BPF) using trisection stepped impedance resonators (SIRs). By appropriately selecting the impedance ratio (K) and length ratio (α) of the SIR, the harmonic frequencies can be tuned for generating the dual‐passband response. The BPF has goo