Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design
碩士 === 國立臺灣科技大學 === 電機工程系 === 106 === This thesis consists of two independent researches. In the first part, A circularly polarization omnidirectional antenna which is applied to 5G communication is proposed and demonstrated. The essence of this research is combining two different kinds of antenna i...
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ndltd-TW-106NTUS54420922019-11-28T05:22:06Z http://ndltd.ncl.edu.tw/handle/4u5q43 Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design 應用於第五代通訊之全向性圓極化天線與毫米波天線陣列設計 Guan-Yi Li 李冠毅 碩士 國立臺灣科技大學 電機工程系 106 This thesis consists of two independent researches. In the first part, A circularly polarization omnidirectional antenna which is applied to 5G communication is proposed and demonstrated. The essence of this research is combining two different kinds of antenna in order to achieve the characteristic of omnidirectional radiation pattern and circularly polarization. Two kinds of antenna are dipole and zeroth-order resonator respectively. Because both of them are linear polarization and omnidirectional radiation pattern, the the characteristic of omnidirectional radiation pattern and circularly polarization can be achieved as long as they are combined in physical space with 90 degree. This research is especially applied to 5G small base station in the future. Secondly, a design of millimeter wave antenna array is studied. This part includes two kinds of antenna array which are both designed at 24.15 GHz. One antenna is called series-fed combline microstrip patch fed at the center. Compared with traditional microstrip patch antenna, combline array has much higher gain and wider beamwidth due to boundary condition and polarization. With this characteristic, the antenna can detect much farther and wider object in the front. The other antenna is also called series-fed combline microstrip patch but fed from the side. Because this type of antenna has much wider beamwidth and satisfy the request that the phase difference between two receivers in FMCW radar system must be linearly descending, it serves as receiver part rather than transceiver part. This thesis includes design idea, RF circuits simulated and measured results. The simulation and measurement results show good agreement. Tzyh-Ghuang Ma 馬自莊 2018 學位論文 ; thesis 98 zh-TW |
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碩士 === 國立臺灣科技大學 === 電機工程系 === 106 === This thesis consists of two independent researches. In the first part, A circularly polarization omnidirectional antenna which is applied to 5G communication is proposed and demonstrated. The essence of this research is combining two different kinds of antenna in order to achieve the characteristic of omnidirectional radiation pattern and circularly polarization. Two kinds of antenna are dipole and zeroth-order resonator respectively. Because both of them are linear polarization and omnidirectional radiation pattern, the the characteristic of omnidirectional radiation pattern and circularly polarization can be achieved as long as they are combined in physical space with 90 degree. This research is especially applied to 5G small base station in the future.
Secondly, a design of millimeter wave antenna array is studied. This part includes two kinds of antenna array which are both designed at 24.15 GHz. One antenna is called series-fed combline microstrip patch fed at the center. Compared with traditional microstrip patch antenna, combline array has much higher gain and wider beamwidth due to boundary condition and polarization. With this characteristic, the antenna can detect much farther and wider object in the front. The other antenna is also called series-fed combline microstrip patch but fed from the side. Because this type of antenna has much wider beamwidth and satisfy the request that the phase difference between two receivers in FMCW radar system must be linearly descending, it serves as receiver part rather than transceiver part. This thesis includes design idea, RF circuits simulated and measured results. The simulation and measurement results show good agreement.
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Tzyh-Ghuang Ma |
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Tzyh-Ghuang Ma Guan-Yi Li 李冠毅 |
author |
Guan-Yi Li 李冠毅 |
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Guan-Yi Li 李冠毅 Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design |
author_sort |
Guan-Yi Li |
title |
Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design |
title_short |
Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design |
title_full |
Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design |
title_fullStr |
Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design |
title_full_unstemmed |
Omnidirectional Circularly Polarized Antenna for 5G Communication and Millimeter-wave Antenna Array Design |
title_sort |
omnidirectional circularly polarized antenna for 5g communication and millimeter-wave antenna array design |
publishDate |
2018 |
url |
http://ndltd.ncl.edu.tw/handle/4u5q43 |
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