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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/431

    Title: 微波功率檢測器與相位不平衡檢測電路之設計;Design of Microwave Power Detector and Phase Imbalance Detection Circuitry
    Authors: 羅瑋瑄;LUO, WEI-XUAN
    Contributors: 電機工程研究所
    Keywords: 相位振幅不平衡檢測;共閘級電流鏡式整流電路;功率檢測器;phase imbalance detection;common gate;power detector
    Date: 2017
    Issue Date: 2019-07-17
    Publisher: 電機工程研究所
    Abstract: 此論文為振幅與相位不平衡檢測電路設計,包含功率檢測電路的設計與模擬量測,使用內建固定相移器用於相位偵測的新概念。在功率檢測電路設計上,使用負載改良的共閘極功率檢測單元,分別針對Ku-band(12 GHz ~ 18 GHz)與超寬頻(0 GHz ~ 30 GHz)設計功率檢測電路,使用1P6M 0.18 um CMOS 製程;與V-band功率檢測電路使用1P9M 90-nm CMOS。在相位檢測上,由於當兩路訊號以較低相位差進行振幅疊加時,其每度相位差經由功率檢測器之輸出電壓變化低,較難以輸出電壓判別相位,因此在訊號合成器加上內建90度相移機制,改變兩訊號合成時相位,改良低相位差區域相位判別度。實作上設計3.5 GHz相關電路,分別需要2路相位可調訊號源、內建90度相移之訊號合成器與功率檢測器,並進行模擬與量測比對與初步演算法的設計。
    This research topic is the microwave power amplitude and phase imbalance detection. The study also presents the design and implementation of power detector using load-improved common gate power detection unit, and proposes the new concept of phase imbalance detection by using signal combiner with embedded phase shifter.Two of fabricated power detectors, Ku-band power detector, ultra-wideband power detector are design by 0.18 um CMOS process, and the V-band power detector is by 90 nm CMOS process. All of them are introduced in chapter III.When using the superposition of signals for phase detection, it may be hard to discriminate the phase difference between the signals as their phase difference is small. In this study, the way employing an embedded phase shifter added into both path of signal combiner is proposed, it changes the relative phase when two signals superimpose, improving the discrimination of phase difference for the low phase difference region. This phase detection system is implemented at 3.5 GHz, and composed of four components, two signal sources with 0?~180? tunable phase, signal combiner with embedded phase shifter, power detector and initial design of algorithm.
    Appears in Collections:[電機工程研究所] 學位論文

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