An Ultra-Compact and Lightweight Ceramic-Free Dual-Band GNSS Antenna Based on Distributed Capacitive Loading

Lucheng Yang; Huazhou Li; Teng Liu; Daqian Lv; Xu Zhu; Longyue Qu

doi:10.1109/LAWP.2026.3689119

An Ultra-Compact and Lightweight Ceramic-Free Dual-Band GNSS Antenna Based on Distributed Capacitive Loading

Lucheng Yang
, Huazhou Li
, Teng Liu
, Daqian Lv
, Xu Zhu
, Longyue Qu^*

^*Corresponding author for this work

School of Information Science and Technology, Harbin Institute of Technology Shenzhen
Shenzhen Hanyang Antenna Design Co. Ltd.
National University of Defense Technology
National Key Laboratory of Electromagentic Space Security

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

Abstract

This work presents an ultra-compact and lightweight ceramic-free dual-band GNSS antenna based on a characteristic-mode-guided distributed capacitive loading technique with an air-dielectric structure, where antenna miniaturization and performance enhancement are achieved through distributed capacitive loading and multi-path current excitation, respectively. Dual-band CP operation at the GNSS L5 and L1 bands is realized using a compact dual-feed stacked configuration. The fabricated antenna occupies a volume of 24 × 24 × 9 mm³. Measured results show -10 dB impedance bandwidths of 1.2% and 1.9%, 3-dB axial-ratio bandwidths of 0.5% and 0.6%, and peak gains of 0.6 dBic and 2.9 dBic, confirming its suitability for compact GNSS applications.

Original language	English
Journal	IEEE Antennas and Wireless Propagation Letters
DOIs	https://doi.org/10.1109/LAWP.2026.3689119
State	Accepted/In press - 2026
Externally published	Yes

Keywords

Antenna miniaturization
CP antenna
GNSS antenna
characteristic mode analysis

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10.1109/LAWP.2026.3689119

Cite this

@article{b82feae6081a47ddad37ea65166db1d1,

title = "An Ultra-Compact and Lightweight Ceramic-Free Dual-Band GNSS Antenna Based on Distributed Capacitive Loading",

abstract = "This work presents an ultra-compact and lightweight ceramic-free dual-band GNSS antenna based on a characteristic-mode-guided distributed capacitive loading technique with an air-dielectric structure, where antenna miniaturization and performance enhancement are achieved through distributed capacitive loading and multi-path current excitation, respectively. Dual-band CP operation at the GNSS L5 and L1 bands is realized using a compact dual-feed stacked configuration. The fabricated antenna occupies a volume of 24 × 24 × 9 mm3. Measured results show -10 dB impedance bandwidths of 1.2\% and 1.9\%, 3-dB axial-ratio bandwidths of 0.5\% and 0.6\%, and peak gains of 0.6 dBic and 2.9 dBic, confirming its suitability for compact GNSS applications.",

keywords = "Antenna miniaturization, CP antenna, GNSS antenna, characteristic mode analysis",

author = "Lucheng Yang and Huazhou Li and Teng Liu and Daqian Lv and Xu Zhu and Longyue Qu",

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

year = "2026",

doi = "10.1109/LAWP.2026.3689119",

language = "英语",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

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

}

TY - JOUR

T1 - An Ultra-Compact and Lightweight Ceramic-Free Dual-Band GNSS Antenna Based on Distributed Capacitive Loading

AU - Yang, Lucheng

AU - Li, Huazhou

AU - Liu, Teng

AU - Lv, Daqian

AU - Zhu, Xu

AU - Qu, Longyue

PY - 2026

Y1 - 2026

N2 - This work presents an ultra-compact and lightweight ceramic-free dual-band GNSS antenna based on a characteristic-mode-guided distributed capacitive loading technique with an air-dielectric structure, where antenna miniaturization and performance enhancement are achieved through distributed capacitive loading and multi-path current excitation, respectively. Dual-band CP operation at the GNSS L5 and L1 bands is realized using a compact dual-feed stacked configuration. The fabricated antenna occupies a volume of 24 × 24 × 9 mm3. Measured results show -10 dB impedance bandwidths of 1.2% and 1.9%, 3-dB axial-ratio bandwidths of 0.5% and 0.6%, and peak gains of 0.6 dBic and 2.9 dBic, confirming its suitability for compact GNSS applications.

AB - This work presents an ultra-compact and lightweight ceramic-free dual-band GNSS antenna based on a characteristic-mode-guided distributed capacitive loading technique with an air-dielectric structure, where antenna miniaturization and performance enhancement are achieved through distributed capacitive loading and multi-path current excitation, respectively. Dual-band CP operation at the GNSS L5 and L1 bands is realized using a compact dual-feed stacked configuration. The fabricated antenna occupies a volume of 24 × 24 × 9 mm3. Measured results show -10 dB impedance bandwidths of 1.2% and 1.9%, 3-dB axial-ratio bandwidths of 0.5% and 0.6%, and peak gains of 0.6 dBic and 2.9 dBic, confirming its suitability for compact GNSS applications.

KW - Antenna miniaturization

KW - CP antenna

KW - GNSS antenna

KW - characteristic mode analysis

UR - https://www.scopus.com/pages/publications/105037873073

U2 - 10.1109/LAWP.2026.3689119

DO - 10.1109/LAWP.2026.3689119

M3 - 文章

AN - SCOPUS:105037873073

SN - 1536-1225

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

ER -

An Ultra-Compact and Lightweight Ceramic-Free Dual-Band GNSS Antenna Based on Distributed Capacitive Loading

Abstract

Keywords

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