An Ultracompact 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 Ultracompact 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 Company 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 ultracompact and lightweight ceramic-free dual-band Global Navigation Satellite Systems (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 multipath current excitation, respectively. Dual-band circularly polarized 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 mm × 24 mm × 9 mm. 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
Pages (from-to)	2713-2717
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	25
Issue number	7
DOIs	https://doi.org/10.1109/LAWP.2026.3689119
State	Published - 1 Jul 2026
Externally published	Yes

Keywords

Antenna miniaturization
Global Navigation Satellite Systems (GNSS) antenna
characteristic mode analysis
circularly polarized (CP) antenna

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10.1109/LAWP.2026.3689119

Cite this

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

abstract = "This work presents an ultracompact and lightweight ceramic-free dual-band Global Navigation Satellite Systems (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 multipath current excitation, respectively. Dual-band circularly polarized 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 mm {\texttimes} 24 mm {\texttimes} 9 mm. 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, Global Navigation Satellite Systems (GNSS) antenna, characteristic mode analysis, circularly polarized (CP) antenna",

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

year = "2026",

month = jul,

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doi = "10.1109/LAWP.2026.3689119",

language = "英语",

volume = "25",

pages = "2713--2717",

journal = "IEEE Antennas and Wireless Propagation Letters",

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T1 - An Ultracompact 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 - 2026/7/1

Y1 - 2026/7/1

N2 - This work presents an ultracompact and lightweight ceramic-free dual-band Global Navigation Satellite Systems (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 multipath current excitation, respectively. Dual-band circularly polarized 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 mm × 24 mm × 9 mm. 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 ultracompact and lightweight ceramic-free dual-band Global Navigation Satellite Systems (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 multipath current excitation, respectively. Dual-band circularly polarized 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 mm × 24 mm × 9 mm. 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 - Global Navigation Satellite Systems (GNSS) antenna

KW - characteristic mode analysis

KW - circularly polarized (CP) antenna

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

U2 - 10.1109/LAWP.2026.3689119

DO - 10.1109/LAWP.2026.3689119

M3 - 文章

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VL - 25

SP - 2713

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 7

ER -

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

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Keywords

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