Design and Measurement Setup of 38 GHz CPW-Fed Meander Line Slot Antenna Array
| Autor: | Zhi-Wei liao, 廖志威 |
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| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 Recently, uniplanar antennas have been used in many applications in millimeter-wave systems. In this dissertation, we focus on the design of the CPW-fed meander line slot antenna array for operational frequency band from 38 to 38.5 GHz. Our design goal is to achieve a high gain antenna array. We utilize two kinds of short-stub as tuning networks to tune the high input impedance of the array to match the characteristic impedance of the feeding CPW. The main beam of a high gain antenna array is usually very narrow. To make the correct measurement, it must be ensured that the antenna array stands still against the rotation of a swivel table, which may lead to a measurement error. For this reason, we make a mechanized clamping apparatus to combine the swivel table, the antenna array, and the K-connector together. It is placed on the swivel table in the anechoic chamber in order to connect the signal part of both the K-connector and the antenna array. When the swivel table is driven by a motor, it will not be vacillating and staggering. Therefore, we can reduce the error of our measurement. To check the accuracy of our design, a planar meander line slot array with a matching circuit is fabricated and tested. From experimental results, this antenna array is proved to be practical and useful. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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