BROWSE
Detail
Conference Paper
A Low-Profile Wideband Antenna with a Low-Loss Feed Network for Satellite Navigation System
Cited - time in 
Share 
Share
- Authors
- Ye-Bon Kim, Sanguk Lee, Yoola Hwang, Soon-Young Eom
- Issue Date
- 2026-07
- Citation
- International Symposium on Antennas and Propagation / USNC-URSI Radio Science Meeting (AP-S/URSI) 2026, pp.399-402
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents a satellite navigation antenna system that combines a wideband low-loss feed network with a compact high-efficiency array architecture. The proposed antenna supports multi-band operation across the L1, L2, L5, and L6 frequency bands while providing sufficient gain for long-range satellite-to-ground transmission. The single antenna element occupies a compact 0.02 λ₀ × 0.8 λ₀ aperture and achieves a 32.7% measured bandwidth with a peak gain of 8.5 dBi. A 28-element array, configured within a 0.02 λ₀ × 4.26 λ₀ aperture, is implemented to realize an optimized isoflux radiation pattern suitable for satellite payload integration. With the integrated wideband low-loss feed network exhibiting 0.5 dB insertion loss, the array achieves more than 15 dBi gain across all GNSS bands, maintains an axial ratio below 1.2 dB, and suppresses sidelobes by more than 18 dB. These results demonstrate that the proposed antenna system is a strong candidate for next-generation satellite navigation payloads requiring multi-band capability, uniform Earth coverage, and stable phase performance.
- KSP Keywords
- Axial Ratio, Isoflux radiation, Long-range, Multi-band operation, Next-generation, Radiation pattern, Satellite navigation system, Wideband Antenna, antenna elements, distributed antenna systems(DAS), feed network