Circularly Polarized Patch Array Antenna Fed by Microstrip Line
Date Issued
2006
Date
2006
Author(s)
Mu, Wei-Yu
DOI
zh-TW
Abstract
Because of its ability of reducing the multipath reflections and several kinds of interference, circular polarization (CP) has been widely used in many applications of microwave frequencies recently. Microstrip antennas are also widely known of their advantages like low profile, light weight, simple structure, and easy to integrate with other circuits. However the narrow bandwidth is an undesirable disadvantage that limits seriously the application of the microstrip antenna.
In order to overcome this undesirable disadvantage of microstrip antenna, sequentially rotated feeding technique is used to increase both the impedance bandwidth and the axial ratio bandwidth.
In this thesis, several kinds of wide-bandwidth and high-gain circularly polarized patch array antenna with sequentially rotated feeding technique fed by the microstrip line are presented. They preserve both the advantages of the circular polarization and the microstrip antenna, and are very suitable for microwave and millimeter-wave applications.
Subjects
圓極化微帶陣列天線
Circularly Polarized Patch Array Antenna
Type
thesis
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