Dual-Band Single-Patch MIMO Antenna With Capacitor-Loaded Shorting Posts (CLSPs) as Modal Tuners

Zeeshan Zahid; Guanghua Sun; Hui Li; Han Chen; Kyung Young Jung; Hu Wang; Longyue Qu

doi:10.1109/LAWP.2025.3540870

Dual-Band Single-Patch MIMO Antenna With Capacitor-Loaded Shorting Posts (CLSPs) as Modal Tuners

Zeeshan Zahid
, Guanghua Sun
, Hui Li
, Han Chen
, Kyung Young Jung
, Hu Wang
, Longyue Qu^*

^*Corresponding author for this work

National University of Sciences and Technology Pakistan
Harbin Institute of Technology Shenzhen
Dalian University of Technology
Hanyang University
Qingdao Intelligent and Precise Electronics Company Ltd.

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This letter introduces a novel dual-band decoupling concept using capacitor-loaded shorting posts as modal tuners to align the resonances of TM₀₂ and TM₁₂ with TM₀₁ and TM₁₁, respectively. Leveraging the modal superposition of two pairs of anti-phase current modes, a dual-band, dual-port single-patch antenna is developed, operating in the 3.5 GHz and 5.5 GHz frequency bands. Measurements confirm the design's effectiveness, improving the isolation from 3.5 dBi to over 12 dB, with peak gains of 6.5 dBi and 7.1 dBi in the respective bands.

Original language	English
Pages (from-to)	1482-1486
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	24
Issue number	6
DOIs	https://doi.org/10.1109/LAWP.2025.3540870
State	Published - 2025
Externally published	Yes

Keywords

Capacitor-loaded shorting posts (CLSPs)
dual-band decoupling
modal tuners

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10.1109/LAWP.2025.3540870

Cite this

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title = "Dual-Band Single-Patch MIMO Antenna With Capacitor-Loaded Shorting Posts (CLSPs) as Modal Tuners",

abstract = "This letter introduces a novel dual-band decoupling concept using capacitor-loaded shorting posts as modal tuners to align the resonances of TM02 and TM12 with TM01 and TM11, respectively. Leveraging the modal superposition of two pairs of anti-phase current modes, a dual-band, dual-port single-patch antenna is developed, operating in the 3.5 GHz and 5.5 GHz frequency bands. Measurements confirm the design's effectiveness, improving the isolation from 3.5 dBi to over 12 dB, with peak gains of 6.5 dBi and 7.1 dBi in the respective bands.",

keywords = "Capacitor-loaded shorting posts (CLSPs), dual-band decoupling, modal tuners",

author = "Zeeshan Zahid and Guanghua Sun and Hui Li and Han Chen and Jung, \{Kyung Young\} and Hu Wang and Longyue Qu",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2025",

doi = "10.1109/LAWP.2025.3540870",

language = "英语",

volume = "24",

pages = "1482--1486",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

}

TY - JOUR

T1 - Dual-Band Single-Patch MIMO Antenna With Capacitor-Loaded Shorting Posts (CLSPs) as Modal Tuners

AU - Zahid, Zeeshan

AU - Sun, Guanghua

AU - Li, Hui

AU - Chen, Han

AU - Jung, Kyung Young

AU - Wang, Hu

AU - Qu, Longyue

PY - 2025

Y1 - 2025

N2 - This letter introduces a novel dual-band decoupling concept using capacitor-loaded shorting posts as modal tuners to align the resonances of TM02 and TM12 with TM01 and TM11, respectively. Leveraging the modal superposition of two pairs of anti-phase current modes, a dual-band, dual-port single-patch antenna is developed, operating in the 3.5 GHz and 5.5 GHz frequency bands. Measurements confirm the design's effectiveness, improving the isolation from 3.5 dBi to over 12 dB, with peak gains of 6.5 dBi and 7.1 dBi in the respective bands.

AB - This letter introduces a novel dual-band decoupling concept using capacitor-loaded shorting posts as modal tuners to align the resonances of TM02 and TM12 with TM01 and TM11, respectively. Leveraging the modal superposition of two pairs of anti-phase current modes, a dual-band, dual-port single-patch antenna is developed, operating in the 3.5 GHz and 5.5 GHz frequency bands. Measurements confirm the design's effectiveness, improving the isolation from 3.5 dBi to over 12 dB, with peak gains of 6.5 dBi and 7.1 dBi in the respective bands.

KW - Capacitor-loaded shorting posts (CLSPs)

KW - dual-band decoupling

KW - modal tuners

UR - https://www.scopus.com/pages/publications/85218153226

U2 - 10.1109/LAWP.2025.3540870

DO - 10.1109/LAWP.2025.3540870

M3 - 文章

AN - SCOPUS:85218153226

SN - 1536-1225

VL - 24

SP - 1482

EP - 1486

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 6

ER -

Dual-Band Single-Patch MIMO Antenna With Capacitor-Loaded Shorting Posts (CLSPs) as Modal Tuners

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Keywords

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