Open AccessDesign of Compact Bandpass Filters Using Novel Dual-Mode Dielectric Patch Resonator
Author(s) -
Jian-Xin Chen,
Yun-Li Li,
Wen-Wen Yang,
Zhi-Hua Bao
Publication year - 2018
Publication title -
ieee access
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 127
ISSN - 2169-3536
DOI - 10.1109/access.2018.2818743
Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation
This paper introduces a new dual-mode dielectric patch resonator (DPR), which consists of a thin square dielectric patch with high permittivity and a low-permittivity substrate with bottom ground plane. A pair of TM11 degenerate modes can act as the dominate mode by fusing the dielectric patch and the substrate with the ground plane, whose resonant frequency is derived by using the combination of mixed magnetic wall method and mirror theory. It can be found that the constructed dual-mode DPR owns both merits of the planar transmission line and the dielectric resonator at the same time, i.e., low-profile configuration and high unloaded quality factor (Qu). Based on the proposed dual-mode DPR, a single-ended bandpass filter (BPF) and a differential BPF is designed respectively. Good agreement can be observed between their respective simulated and measured results. Both of them showcase several advantages such as low passband loss, low profile, and compact size.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom