Radar Front-End Integration for Size Reduction
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Solution Overview
Problem
Conventional radar apparatuses face challenges in reducing size and complexity while maintaining performance due to the need for multiple antennas and channels, which increases the size and complexity of the transmission/reception circuit unit and deteriorates yield and performance.
Innovation Solution
A radar apparatus with a front-end structure where the radar antenna unit and signal transmission/reception unit are mounted on the same side of a printed circuit board, connected via micro-strip lines or wire-bonding, and integrated as single or separate integrated circuit chips, with a protective member to cover the signal transmission/reception unit and a base band circuit board for control and signal conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple antennas and channels are arranged to improve angular resolution and beam-forming, then the radar performance is improved, but the complexity of the transmission/reception circuit unit and radar size increase
Solution Approach 1:
The patent combines multiple transmission units and reception units into a single integrated transmission/reception unit circuit. This merging approach maintains the functionality of multiple antennas and channels while reducing circuit complexity and radar size, directly resolving the contradiction between improved angular resolution and increased device complexity
2Measurement precision
If multiple antennas and channels are arranged to improve beam-forming, then the radar performance is improved, but the radar size increases
Solution Approach 1:
The patent merges multiple transmission/reception units into a single integrated circuit unit, which significantly reduces the radar apparatus size while maintaining the capability for beam-forming and angular resolution improvement through multiple antennas and channels
3Object-affected harmful factors
If a conventional configuration with separate superhigh frequency substrates is used, then EMI/EMC performance is improved, but the radar size increases and yield deteriorates
Solution Approach 1:
The patent integrates the superhigh frequency substrate and radar circuitry into a single configuration, eliminating the need for separate substrates and transition circuits. This merging approach reduces radar size and improves yield while maintaining EMI/EMC performance through optimized circuit design
4Reliability
If transition circuits and waveguides are used to connect antenna and transmission/reception units, then signal transmission is enabled, but the radar size increases and yield deteriorates
Solution Approach 1:
The patent integrates the transmission/reception unit directly with the superhigh frequency substrate, eliminating the need for separate transition circuits and waveguides. This direct integration maintains signal transmission reliability while significantly improving manufacturing yield and reducing radar size
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
This configuration results in a smaller, less complex radar apparatus with improved yield and performance by integrating the antenna and signal processing units on a single printed circuit board, reducing the number of parts and maintaining performance.
Implementation Method 1
connected with each other through a micro-strip line or by wire-bonding
Data Source
AI summary
The present invention relates to a radar apparatus. More particularly, the present invention is a radar apparatus having a front end structure that is reduced in size and the number of parts.