Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO
碩士 === 國立臺灣大學 === 電信工程學研究所 === 104 === In this paper, we proposed a 38GHz compact and wideband circularly polarized patch antenna design with branch line coupler using InFO-WLP (Integrated Fan-Out Wafer-Level-Packaging) technology using vertically connection in InFO-WLP to miniature size. Firstly, w...
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ndltd-TW-104NTU054350962017-06-25T04:38:17Z http://ndltd.ncl.edu.tw/handle/64592838218668329334 Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO 結合分枝耦合器之微小化寬頻圓極化晶圓級封裝天線 Yu-Chien Chiu 邱郁蒨 碩士 國立臺灣大學 電信工程學研究所 104 In this paper, we proposed a 38GHz compact and wideband circularly polarized patch antenna design with branch line coupler using InFO-WLP (Integrated Fan-Out Wafer-Level-Packaging) technology using vertically connection in InFO-WLP to miniature size. Firstly, we design a branch-line coupler which can provide two same magnitude output but 90 degrees phase difference. After this, it comes to dual-fed square patch antenna. Lastly, we connected branch-line coupler and square patch antenna by TIVs. By orthogonally fed, it becomes a perfect circularly polarized patch antenna. Miniaturized The design concept of miniaturized and compact CP antenna is almost the same as traditional dual-fed CP antenna. What’s difference between them is the proposed antenna is vertically stacked in order to compact size, we also utilize InFO-WLP technology to reduce path loss and power consumption. Additionally, smaller form factor and high quality factor are two of advantages of InFO-WLP. We use two different feeding structure to achieve our goal. One is coupling-fed and the other one is microstrip line-fed. The results suggested that the coupling-fed one’s impedance bandwidth is 33.3%, 3dB axial ration bandwidth is 17.65%, 3dB gain bandwidth is 8.07% and useful bandwidth is 8.07%. And microstrip line-fed one’s impedance bandwidth is 33.1%, 3dB axial ration bandwidth is 32.41%, 3dB gain bandwidth is 12.8% and useful bandwidth is 12.8%. 吳瑞北 2016 學位論文 ; thesis 77 zh-TW |
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碩士 === 國立臺灣大學 === 電信工程學研究所 === 104 === In this paper, we proposed a 38GHz compact and wideband circularly polarized patch antenna design with branch line coupler using InFO-WLP (Integrated Fan-Out Wafer-Level-Packaging) technology using vertically connection in InFO-WLP to miniature size. Firstly, we design a branch-line coupler which can provide two same magnitude output but 90 degrees phase difference. After this, it comes to dual-fed square patch antenna. Lastly, we connected branch-line coupler and square patch antenna by TIVs. By orthogonally fed, it becomes a perfect circularly polarized patch antenna.
Miniaturized The design concept of miniaturized and compact CP antenna is almost the same as traditional dual-fed CP antenna. What’s difference between them is the proposed antenna is vertically stacked in order to compact size, we also utilize InFO-WLP technology to reduce path loss and power consumption. Additionally, smaller form factor and high quality factor are two of advantages of InFO-WLP.
We use two different feeding structure to achieve our goal. One is coupling-fed and the other one is microstrip line-fed. The results suggested that the coupling-fed one’s impedance bandwidth is 33.3%, 3dB axial ration bandwidth is 17.65%, 3dB gain bandwidth is 8.07% and useful bandwidth is 8.07%. And microstrip line-fed one’s impedance bandwidth is 33.1%, 3dB axial ration bandwidth is 32.41%, 3dB gain bandwidth is 12.8% and useful bandwidth is 12.8%.
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吳瑞北 |
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吳瑞北 Yu-Chien Chiu 邱郁蒨 |
author |
Yu-Chien Chiu 邱郁蒨 |
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Yu-Chien Chiu 邱郁蒨 Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO |
author_sort |
Yu-Chien Chiu |
title |
Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO |
title_short |
Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO |
title_full |
Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO |
title_fullStr |
Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO |
title_full_unstemmed |
Design of Miniaturized Wideband Circularly Polarized Patch Antenna with Branch Line Coupler in InFO |
title_sort |
design of miniaturized wideband circularly polarized patch antenna with branch line coupler in info |
publishDate |
2016 |
url |
http://ndltd.ncl.edu.tw/handle/64592838218668329334 |
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