Balun structure and dual-polarized antenna

CN115693145BActive Publication Date: 2026-05-26COMBA TELECOM TECH (GUANGZHOU) CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
COMBA TELECOM TECH (GUANGZHOU) CO LTD
Filing Date
2022-10-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In modern base station antennas, the reduced spacing between dual-polarized antennas operating at different frequencies leads to decreased isolation between systems in different frequency bands. Existing solutions that increase the spacing or add filters result in increased size or complex structure, making it difficult to meet the requirements of modern operators.

Method used

A balun structure is adopted, and high-frequency induced current is eliminated by setting a choke unit on the reference ground wire to improve isolation. A power supply circuit is set on the dielectric substrate for power supply.

Benefits of technology

It effectively reduces coupling between different frequency bands, improves isolation, reduces antenna size, and enhances integration, meeting the needs of modern operators.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115693145B_ABST
    Figure CN115693145B_ABST
Patent Text Reader

Abstract

This disclosure relates to the field of communication technology, and more particularly to a balun structure and a dual-polarized antenna. The balun structure includes at least one reference ground wire and at least one choke element, with at least one choke element disposed on each reference ground wire. The choke element is used to eliminate the high-frequency induced current generated by the reference ground wire. The balun structure provided by this disclosure eliminates the high-frequency induced current generated by the reference ground wire through the choke element. Since the high-frequency induced current generated by the reference ground wire is eliminated, the coupling between different high and low frequency bands in a multi-band antenna system using this balun structure can be effectively reduced, thereby improving the isolation between different high and low frequency bands in the multi-band antenna system.
Need to check novelty before this filing date? Find Prior Art