Compact omnidirectional broadband high-efficiency full-duplex binary antenna pair based on dipole antenna

By adding near-field resonant parasitic structure and connecting strips loading series capacitors on the Egyptian Tomahawk dipole antenna, the high isolation and omnidirectional performance problems of compact omnidirectional broadband high-efficiency full-duplex antenna are solved, and broadband performance expansion and omnidirectional radiation are achieved, which is suitable for indoor terminal communication.

CN120357169APending Publication Date: 2025-07-22CHONGQING UNIV
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Patent Information

Application Number
CN202510510739.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-07-22

AI Technical Summary

Technical Problem

The existing compact omnidirectional broadband high-efficiency in-band full duplex antenna design has problems such as difficult to achieve high isolation, narrow impedance bandwidth and decoupling bandwidth, and deterioration of the omnidirectional performance of the antenna, making it difficult to be suitable for indoor terminal applications.

Method used

Using compact omnidirectional broadband high-efficiency full-duplex binary antenna pairs based on dipole antennas, the antenna bandwidth expansion and high isolation are achieved by adding near-field resonant parasitic structures and connecting strips loading series capacitors on Egyptian Tomahawk dipoles, and the antenna bandwidth expansion and high isolation are achieved to avoid complex decoupling networks.

Benefits of technology

It realizes broadband performance expansion, isolation improvement, and omnidirectional radiation performance maintenance of antennas. It has a simple structure and is suitable for compact indoor terminal communication scenarios.

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Abstract

The invention discloses a compact omnidirectional broadband high-efficiency full-duplex binary antenna pair based on a dipole antenna, which relates to the technical field of dipole antennas, and comprises a near-field resonance parasitic structure, a first dielectric substrate, two Egypt battle axe dipoles, a second dielectric substrate and two feed dipoles, the near-field resonance parasitic structure is arranged on the upper surface of the first dielectric substrate, the two Egypt battle axe dipoles are arranged on the lower surface of the first dielectric substrate, and the two feed dipoles are arranged on the lower surface of the second dielectric substrate; the lower surface of the first dielectric substrate is fixedly connected with the upper surface of the second dielectric substrate; the antenna has the advantages of miniaturization, low profile, high isolation, high efficiency, stable omnidirectional performance and wide working bandwidth, and can be applied to a high-performance indoor terminal communication WiFi antenna system with a compact size.
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