Waveguide Power Divider Antenna for High-Power Miniaturization
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Solution Overview
Problem
Existing antennas with microstrip feeding networks struggle to meet high-power transmission requirements while maintaining a small volume, due to low maximum transmission power and high insertion loss.
Innovation Solution
The proposed antenna employs a waveguide power divider within a housing, allowing for low-loss high-power transmission and miniaturization, with a radiating unit and feeding network unit that can function as both transmitting and receiving antennas, utilizing a waveguide power divider structure with multiple levels and a choke portion for improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If microstrip feeding network structure is used, then volume is reduced and cost is lowered, but maximum transmission power decreases and insertion loss increases
Solution Approach 1:
The patent changes the fundamental feeding structure from microstrip to waveguide, utilizing the waveguide's inherent ability to handle high power with low loss. The waveguide power divider maintains a compact form factor while providing high-power transmission capability through its metallic enclosed structure and controlled impedance characteristics.
Solution Approach 2:
The patent replaces the microstrip feeding network with a waveguide-based feeding system. The waveguide structure substitutes the planar microstrip transmission lines, providing superior power handling and reduced insertion loss while maintaining miniaturization through integrated waveguide power divider design.
2Volume of stationary object
If microstrip feeding network structure is used, then volume is reduced, but insertion loss increases
Solution Approach 1:
The patent changes the feeding structure from microstrip to waveguide, exploiting the waveguide's low-loss transmission characteristics. The waveguide power divider is designed with optimized dimensions and configurations to minimize insertion loss while maintaining a compact overall antenna structure.
3Power
If waveguide power divider is used, then high-power transmission and low loss are achieved, but structure complexity increases
Solution Approach 1:
The patent merges the waveguide power divider with the radiating elements, integrating the feeding network and radiating function into a unified structure. This integration reduces the number of separate components and simplifies the overall antenna design while maintaining high-power transmission capability and low loss.
Solution Approach 2:
The waveguide power divider is designed to serve multiple functions simultaneously: power division, impedance matching, and radiation. This multi-functionality reduces the need for separate components and simplifies the overall antenna structure despite the advanced feeding mechanism.
4Power
If waveguide power divider is used, then high-power transmission and low loss are achieved, but antenna volume increases
Solution Approach 1:
The patent employs a nested configuration where the waveguide power divider sections are arranged in a compact, space-efficient manner. The waveguide structures are positioned to utilize available space optimally, with higher-level power division sections containing or adjacent to lower-level sections, reducing the overall antenna volume.
Solution Approach 2:
The patent transitions from planar microstrip feeding to three-dimensional waveguide structures, utilizing vertical and lateral spatial dimensions to pack the power divider sections more efficiently. This dimensional transition enables compact integration of high-power waveguide components without excessive volume increase.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables efficient high-power transmission with reduced volume, achieving low loss and meeting miniaturization requirements, with the waveguide power divider providing a simple structure for reduced overall size and improved radiation patterns.
Implementation Method 1
a waveguide power divider connecting the first port and the second port, and the waveguide power divider is configured for dividing an electromagnetic wave transmitted from the first port to the second port, or merging an electromagnetic wave transmitted from the second port to the first port
Implementation Method 2
the electromagnetic wave is transmitted to the radiating unit through the second port, and is radiated to a free space by the radiator of the radiating unit
Data Source
AI summary
An antenna and a combined antenna are provided. The antenna comprises: a housing in which a first port and a second port are formed; a feeding network unit, which is disposed inside the housing and comprises a waveguide power divider connecting the first port and the second port, wherein the waveguide power divider is configured for dividing the electromagnetic wave transmitted from the first port to the second port, or merging the electromagnetic wave transmitted from the second port to the first port; a radiating unit, which comprises a radiator disposed on the housing and close to the second port. The antenna has the advantages of low loss, being suitable for high-power transmission. In addition, the antenna is relatively simple in structure, and therefore, is beneficial to reduce the overall volume of the antenna, so as to meet the miniaturization design requirements of the antenna.