A Study of Integrated Planar Antenna for Vehicles
Date Issued
2007
Date
2007
Author(s)
Tu, Chun-Yi
DOI
zh-TW
Abstract
The main theme of this study is to make a fundamental discussion of vehicle antenna systems and to design an integrated vehicle antenna system. The frequency bands cover the applications of DTV, GSM, DCS, GPS, and WLAN. The designed antenna system has multiple output ports and each port can be directly connected to different transceivers.
The tasks to be investigated include: possible architectures of the integrated antenna systems and their advantages and limitations; possible locations for placing the antenna; feasibility of replacing part of the car body with materials suitable for antenna design; design of planar antennas for different frequency bands and integration of them on a single circuit board.
In this study, SEMCAD-X was used to simulate antennas and car bodies, and design of planar antennas for different frequency bands was in the simulated environment with car body effect. Integration of these designed antennas subsequently proceeded. Based on different layouts, simulated results of return loss for the impacts on resonant bands were observed.
Finally, according to the simulated results, an integrated planar antenna was actually fabricated. It was measured in an anechoic chamber to obtain return loss and radiation pattern of the integrated planar antenna on a car roof model. From the measured results, the feasibility of integrated planar antenna for vehicles was verified. Several new design concepts for vehicular antennas can be obtained in this thesis.
Subjects
整合式車輛天線系統
車輛天線
整合式天線
多頻帶天線
寬頻天線
平面天線
Integrated Vehicle Antenna Systems
Vehicular Antennas
Integrated Antennas
Multi-band Antennas
Broadband Antennas
Planar Antennas
Type
thesis
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