ScholarLens Back to search
2012•Journal of Electromagnetic Waves and ApplicationsRequires access

Design of a New Dual-Band Diplexer for GPS, WLAN and WiMAX Applications

Min‐Hang Weng, C.-Y. Hung, Ru‐Yuan Yang, Chih-Chin Lin, Chun-Chia Hsiung

Open publisher page 4 citations

Abstract

In this paper, a dual-band diplexer is proposed. Two dualband bandpass filters (DB-BPFs) using coupled stepped-impedance resonators (SIRs) operated at 1.575/2.13 GHz and 3.15/5.2 GHz are main blocks combined with a branch matching circuit for the proposed dual-band diplexer. By analyzing the input impedance Zin of different loading structures, we can precisely predict the stopband positions of the loading structures to avoid the interference between the two sets of different channels. A high isolation of 40 dB between the two sets of channels is obtained. The simulated and measured results have a good agreement with the proposed design concept.

About this research paper

What this paper is about

In this paper, a dual-band diplexer is proposed. Two dualband bandpass filters (DB-BPFs) using coupled stepped-impedance resonators (SIRs) operated at 1.575/2.13 GHz and 3.15/5.2 GHz are main blocks combined with a branch matching circuit for the proposed dual-band diplexer. By analyzing the input impedance Zin of different loading structures, we can precisely predict the stopband positions of the loading structures to avoid the interference between the two sets of different channels. A high isolation of 40 dB between the two sets of channels is obtained. The simulated and measured results have a good agreement with the proposed design concept.

Why it matters

OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

In this paper, a dual-band diplexer is proposed. Two dualband bandpass filters (DB-BPFs) using coupled stepped-impedance resonators (SIRs) operated at 1.575/2.13 GHz and 3.15/5.2 GHz are main blocks combined with a branch matching circuit for the proposed dual-band diplexer. By analyzing the input impedance Zin of different loading structures, we can precisely predict the stopband positions of the loading structures to avoid the interference between the two sets of different channels. A high isolation of 40 dB between the two sets of channels is obtained. The simulated and measured results have a good agreement with the proposed design concept.

Key concepts: Diplexer, Stopband, Multi-band device, WiMAX, Band-pass filter, Electrical impedance, Resonator, Impedance matching

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Design of a New Dual-Band Diplexer for GPS, WLAN and WiMAX Applications — Research Paper | ScholarLens