Integrated Antenna Module Layout for Compact UWB Vehicle Access
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Solution Overview
Problem
Conventional antenna modules for portable terminals, such as UWB chip antennas and LDS antennas, face performance reduction and increased costs due to size constraints and high prices, making them unsuitable for mounting on portable terminals for vehicle communication.
Innovation Solution
An antenna module with integrated near field communication, wireless power transmission/reception, electronic payment, and ultra-wide band communication radiation patterns formed on a base substrate with a low dielectric dissipation factor, utilizing extension substrates and flexible substrates to minimize space and enable UWB communication between vehicles and portable terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UWB chip antenna is mounted on the portable terminal, then UWB communication function is achieved, but the performance is reduced
Solution Approach 1:
The patent combines multiple antenna types (NFC antenna, wireless charging antenna, and UWB antenna) into a single integrated antenna module. The UWB antenna is formed on the same substrate as the other antennas, sharing common structural elements like the ground pattern and substrate layers. This integration allows UWB communication functionality to be achieved while maintaining antenna performance through optimized design of the combined structure.
2Adaptability or versatility
If an LDS antenna is used for UWB communication, then communication function is achieved, but the price increases and mounting space requirements increase
Solution Approach 1:
The patent designs a multi-functional antenna module where a single substrate structure serves multiple purposes: it contains the NFC radiation pattern, wireless charging radiation pattern, and UWB radiation pattern. The UWB antenna shares the ground pattern and substrate with other antenna types, eliminating the need for separate LDS antenna structures and reducing overall mounting space requirements while maintaining UWB communication capability.
Data Source
AI summary
Suggested is an antenna module in which a radiation pattern for ultra-wideband communication and at least one of a radiation pattern for short-range communication, a radiation pattern for transmitting and receiving wireless power, a radiation pattern for electronic payment are integrally formed to enable communication with a vehicle. The suggested antenna module comprises: a first antenna having a first radiation pattern resonating in a first frequency band; and a second antenna disposed on one surface of the first antenna and having a second radiation pattern resonating in a UWB frequency band different from the first frequency band. The first antenna includes a base substrate on which the first radiation pattern is formed and an extension substrate extending outward from the base substrate, and the second antenna is disposed on the upper surface of the extension substrate.