𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dual-mode bandpass filter using triangular patch resonator with inverted T-shaped slot

✍ Scribed by Ariana L. C. Serrano; Fatima Salete Correra

Book ID
102949087
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
614 KB
Volume
49
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

This article presents a miniaturized dual‐mode narrow bandpass filter using an equilateral triangular patch resonator with an inverted T‐shaped slot, which exhibited a size reduction of 37% compared with a single‐mode equilateral triangular patch at the same frequency. Two‐ and four‐pole dual‐mode bandpass filters were designed and fabricated with this new resonator. Experimental results with the two‐pole filter centred at 7.76 GHz showed a fractional bandwidth of 4.5%, return loss better than 17.8 dB, and minimum insertion loss of 2.2 dB. The results of the four‐pole filter showed a fractional bandwidth of 3.5%, return loss better than 16 dB, minimum insertion loss of 2.6 dB, and a good second harmonic band rejection. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2897–2902, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22927

📜 SIMILAR VOLUMES

Miniaturized dual-mode triangular patch
Miniaturized dual-mode triangular patch filter with inverted V-shaped slot
✍ Chien-Jen Wang; Ze-Chang Ker 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 537 KB

band is at 1GHz. The third harmonic signal is less than Ϫ30 dB and other higher harmonic signals upto 10 GHz are less than Ϫ15 dB. ## 4. Conclusions An example of a highly compact microstrip branch-line coupler having high harmonic suppression, based on stopband characteristic of DGS sections, has

Compact dual-mode bandpass filter using
Compact dual-mode bandpass filter using equilateral triangular slotted-patch resonator
✍ Jian-Xin Chen; Quan Xue 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 112 KB

## Abstract A compact dual‐mode bandpass filter (BPF) using equilateral triangular slotted‐patch resonator is proposed, which has the advantages of compact size, low insertion loss, and good passband selectivity because of two transmission zeros located at the low and high stopband. A demonstration

Compact dual-mode bandpass filter using
Compact dual-mode bandpass filter using arrow-shaped slot resonator
✍ Youngje Sung 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 178 KB

## Abstract A novel design of a compact bandpass ring slot filter for achieving dual‐mode operation is proposed and experimentally studied. By using an arrow‐shaped slot structure as a resonator, the resonant frequency of the proposed filter is significantly lowered, which can lead to a large filte

Low-loss triangular-patch dual-mode band
Low-loss triangular-patch dual-mode bandpass filter with slotted input/output
✍ Haiwen Liu; Zhiqun Cheng; Lingling Sun 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB

## Abstract Without any perturbations on the surface of the patch resonator or orthogonal feed lines, a novel microstrip dual‐mode triangular‐patch bandpass filter with slotted I/O is introduced in this letter. The degenerate modes are excited by the use of the slotted I/O. Also, the coupling chara

Dual-mode DC-block semicircular-patch ba
Dual-mode DC-block semicircular-patch bandpass filter using slot technique
✍ Haiwen Liu; Reinhard H. Knoechel; Lingling Sun; Klaus F. Schuenemann 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB

## Abstract A simple semicircular‐patch bandpass filter (BPF) is presented in this letter. The slot between two semicircular‐patch resonators provides DC blocking and a strong coupling, while the slotted orthogonally feed lines are used to obtain the dual‐mode characteristics. Measurement demonstra