A compact coupling controllable elliptical filter based on multilayer LTCC

A compact coupling controllable elliptical filter based on multilayer LTCC

This paper presents a compact elliptical filter based on modified λ/4 resonators with separated electric and magnetic coupling paths. For the proposed second-order filters, transmission zero points are generated at either lower or upper stopband by controlling the relative coupling strength in the t...

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Bibliographic Details
Main Authors: Meng, Fanyi, Ma, Kaixue, Yeo, Kiat Seng, Boon, Chirn Chye, Xu, Shanshan, Lim, Wei Meng, Do, Manh Anh
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2013
Subjects:
DRNTU::Engineering::Electrical and electronic engineering
Online Access:https://hdl.handle.net/10356/106692
http://hdl.handle.net/10220/16636
http://dx.doi.org/10.1002/mop.27679
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Institution: Nanyang Technological University
Language: English
Description
Summary:This paper presents a compact elliptical filter based on modified λ/4 resonators with separated electric and magnetic coupling paths. For the proposed second-order filters, transmission zero points are generated at either lower or upper stopband by controlling the relative coupling strength in the two paths of inter-stage resonators. Based on the topology and multilayer LTCC technology, a fourth-order bandpass filters operating at 5.2 GHz with a fractional bandwidth of 10% in 1.7 mm × 3 mm (0.0785λg × 0.1385λg) is designed and verified experimentally.

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