Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator

A compact planar diplexer utilizing embedded-scheme resonator (ESR) is designed for universal mobile telecommunications system (UMTS). The ESR is formed by embedding interdigital resonators into an open loop resonator. Based on the proposed ESR, a narrowband bandpass filter suitable for diplexer des...

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Main Authors: B. F. Zong, G. M. Wang, Y. W. Wang, F. Wu
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2013-12-01
Series:Radioengineering
Subjects:
Online Access:http://www.radioeng.cz/fulltexts/2013/13_04_1218_1223.pdf
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author B. F. Zong
G. M. Wang
Y. W. Wang
F. Wu
author_facet B. F. Zong
G. M. Wang
Y. W. Wang
F. Wu
author_sort B. F. Zong
collection DOAJ
description A compact planar diplexer utilizing embedded-scheme resonator (ESR) is designed for universal mobile telecommunications system (UMTS). The ESR is formed by embedding interdigital resonators into an open loop resonator. Based on the proposed ESR, a narrowband bandpass filter suitable for diplexer design is proposed, fabricated and measured. The measured results demonstrate that the filter exhibits good transmission properties within band and high frequency selectivity. The rectangular area occupied by the filter has overall dimensions only 0.086λg by 0.105λg, promises good potential in wireless communication systems that require compact size and high encapsulation quality. Then, a compact planar diplexer operating at the TX-band of 1920-1980MHz and the RX-band of 2110-2170MHz, which is composed of a meander T-junction and two filters initially separately designed, is synthesized, simulated and measured. Both the simulated and measured results indicate that satisfied impedance matching and good isolation between two paths have been achieved.
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spelling doaj.art-a4db947d5a1443a1b05a8e45367302842022-12-22T00:44:03ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122013-12-0122412181223Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme ResonatorB. F. ZongG. M. WangY. W. WangF. WuA compact planar diplexer utilizing embedded-scheme resonator (ESR) is designed for universal mobile telecommunications system (UMTS). The ESR is formed by embedding interdigital resonators into an open loop resonator. Based on the proposed ESR, a narrowband bandpass filter suitable for diplexer design is proposed, fabricated and measured. The measured results demonstrate that the filter exhibits good transmission properties within band and high frequency selectivity. The rectangular area occupied by the filter has overall dimensions only 0.086λg by 0.105λg, promises good potential in wireless communication systems that require compact size and high encapsulation quality. Then, a compact planar diplexer operating at the TX-band of 1920-1980MHz and the RX-band of 2110-2170MHz, which is composed of a meander T-junction and two filters initially separately designed, is synthesized, simulated and measured. Both the simulated and measured results indicate that satisfied impedance matching and good isolation between two paths have been achieved.www.radioeng.cz/fulltexts/2013/13_04_1218_1223.pdfEmbedded-scheme resonatorband pass filterplanar diplexer
spellingShingle B. F. Zong
G. M. Wang
Y. W. Wang
F. Wu
Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator
Radioengineering
Embedded-scheme resonator
band pass filter
planar diplexer
title Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator
title_full Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator
title_fullStr Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator
title_full_unstemmed Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator
title_short Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator
title_sort design of compact bpf and planar diplexer for umts using embedded scheme resonator
topic Embedded-scheme resonator
band pass filter
planar diplexer
url http://www.radioeng.cz/fulltexts/2013/13_04_1218_1223.pdf
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