Symmetrical Polarized Wave Array Antenna Wiring Layout
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Solution Overview
Problem
In polarized wave shared array antennas, the complexity of wiring layouts required to ensure equal lengths of wirings from transmission and reception units to feeding points leads to increased wiring loss and design man-hours, especially when integrating multiple planar antennas for beamforming.
Innovation Solution
The configuration involves placing first and second planar antennas with orthogonal polarized wave feeding points symmetrically on one surface and connecting them via integrated circuits with symmetrical transmission and reception units on the other surface, ensuring equal wiring lengths without complicated shapes by aligning feeding points and units along specific axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wirings are made equal in length to ensure equal characteristics of same polarized waves, then wiring loss increases and design complexity increases
Solution Approach 1:
The patent applies asymmetry by intentionally making the wirings for orthogonal polarized waves have different lengths and different routing paths. Specifically, the first wiring connects the first transmission and reception unit to the first feeding point with a first length, while the second wiring connects the second transmission and reception unit to the second feeding point with a second length that is deliberately different from the first length. This asymmetric design allows each polarization to have optimized wiring characteristics without being constrained by the requirement of equal-length wirings, thereby reducing overall wiring loss and simplifying the design process while maintaining equal characteristics for same polarized waves across different planar antennas
2Manufacturing precision
If complicated wiring shapes are used to make wirings equal in length, then wiring loss increases
Solution Approach 1:
The patent applies local quality by allowing different wiring configurations for different polarized waves based on their specific requirements. The first wiring and second wiring are designed with different lengths and routing paths optimized for their respective orthogonal polarized waves. This localized optimization enables each polarization to have appropriate wiring characteristics without forcing all wirings to be equal in length, thereby reducing overall wiring loss while maintaining the necessary precision for equal characteristics of same polarized waves across the antenna array
3Device complexity
If symmetrical arrangement of feeding points and transmission/reception units is used, then wiring length equality is achieved without complicated shapes
Solution Approach 1:
The patent applies asymmetry by intentionally making the wirings for orthogonal polarized waves have different lengths and different routing paths. Specifically, the first wiring connects the first transmission and reception unit to the first feeding point with a first length, while the second wiring connects the second transmission and reception unit to the second feeding point with a second length that is deliberately different from the first length. This asymmetric design allows each polarization to have optimized wiring characteristics without being constrained by the requirement of equal-length wirings, thereby reducing overall wiring loss and simplifying the design process while maintaining equal characteristics for same polarized waves across different planar antennas
Data Source
AI summary
A polarized wave shared array antenna 10A includes: planar antennas 11a and 11b, each of which generating two polarized waves of first and second polarized waves orthogonal to each other; feeding points 12a and 12b for generating the first polarized wave, which are provided in the planar antenna 11a, and feeding points 14a and 14b for generating the second polarized wave, which are provided in the planar antenna 11b; and an integrated circuit 20 including transmission and reception units 21a, 21b, 22a, and 22b connected to the respective feeding points 12a, 12b, 14a, and 14b via wirings, in which in a plan view, with respect to an axis A1, the feeding points 12a and 14a, respectively, are disposed symmetrical to the feeding points 12b and 14b, and the transmission and reception units 21a and 22a, respectively, are disposed symmetrical to the transmission and reception units 21b and 22b.