Antenna device

By designing symmetrical housing and waveguide component structures, the problem of unstable signal transmission in resonant cavity antenna devices was solved, achieving stable and symmetrical field distribution and good signal transmission performance, with the ability to be customized.

CN116454635BActive Publication Date: 2026-06-09TMY TECH INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TMY TECH INC
Filing Date
2022-08-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

How can we further improve antenna devices with resonant cavities to achieve good signal transmission performance and a stable and symmetrical field pattern distribution?

Method used

An antenna device is designed, including a housing assembly, a first waveguide assembly, and a second waveguide assembly. The housing assembly defines a cavity inside. The first waveguide assembly is symmetrically located on both sides of a slot. The second waveguide assembly connects to the slot to transmit signals to the cavity. The signals resonate inside the cavity and radiate outward. The symmetrical design of the slot and waveguide assembly contributes to a stable and symmetrical field distribution.

Benefits of technology

It achieves good transmission effect of antenna signal and stable and symmetrical field distribution. By adjusting the capacitance and inductance of waveguide components and the length and width of slots, personalized design effect can be achieved.

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    Figure CN116454635B_ABST
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Abstract

The present application provides an antenna device, which includes a housing assembly, a first waveguide assembly and a second waveguide assembly. The interior of the housing assembly defines a cavity, and a slot is formed through the first side of the housing assembly. At least a portion of the first waveguide assembly is located in the cavity and is connected to the first side of the housing assembly. The projection of the first waveguide assembly on the first side of the housing assembly is symmetrically located on both sides of the slot. The second waveguide assembly is located outside the housing assembly, near the first side and connected to the slot. The second waveguide assembly is adapted to transmit an antenna signal through the slot to the cavity via the first waveguide assembly. The antenna signal resonates in the cavity and is radiated outward from the second side of the cavity relative to the first side. The antenna device of the present application has good signal transmission effect and stable and symmetric field pattern distribution.
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