Handheld satellite low-orbit fusion antenna

By employing a nested double quadruple-arm spiral structure and a dielectric loading design, the problem of existing antennas being unable to communicate simultaneously is solved, achieving balanced gain and beamwidth across both the Tiantong and LOR dual-band frequencies, thus meeting the miniaturization and reliability requirements of handheld satellite communication terminals.

CN122026070BActive Publication Date: 2026-07-21BEIJING TIANHAIDA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING TIANHAIDA TECH CO LTD
Filing Date
2026-04-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing Tiantong and LOR-integrated antennas cannot achieve simultaneous dual-band communication, have unbalanced performance, complex structure, low miniaturization, and poor reliability, and cannot meet the application requirements of handheld satellite communication terminals.

Method used

It adopts a nested double four-arm spiral structure design, and achieves simultaneous operation of Tiantong and LOR dual frequency bands through differentiated parameter optimization. Combined with dielectric loading and integrated power supply network, it simplifies the structure and improves reliability.

Benefits of technology

It achieves efficient communication across both the Tiantong and LOR dual-band frequencies, with balanced gain and beamwidth, a miniaturized and highly reliable structure, adaptability to complex outdoor environments, and meets the requirements for handheld devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a handheld GEO-LEO fusion antenna, and belongs to the technical field of satellite communication antennas. The antenna comprises a radome, a low-orbit antenna medium load, a low-orbit antenna array, a GEO antenna array, a feeding printed circuit board, a radio frequency connector and an antenna base. The radome is sealed with the base to form a containing cavity, and a nested double four-arm spiral array is arranged in the cavity. The low-orbit array is attached to the outside of the medium through the medium load. The GEO array has an inner layer structure. The feeding ends of the two arrays are welded to the printed board of an integrated phase-shifting, filtering and feeding module. The antenna is designed with different parameters so that the two arrays work in the axial mode. The filtering feeding and ground coupling are combined to realize double-frequency resonance and frequency band isolation. The two frequency bands can be simultaneously communicated, the gain and beam width are balanced, the protection level is IP65, and the application requirements of handheld satellite communication terminals, such as miniaturization, high reliability and multi-frequency band collaborative communication, are met.
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