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Title: | 應用於毫米波接收訊號強度指示系統之可切換對數功率偵測器晶片 Switchable Logarithmic Power Detector Chips for Millimeter Wave Received Signal Strength Indicator System |
Authors: | Tai-Yi Lin 林岱儀 |
Advisor: | 盧信嘉(Hsin-Chia Lu) |
Keyword: | 毫米波,接收訊號強度指示系統,功率偵測電路,低雜訊放大器,雙重耦合變壓器,變壓器共閘極放大器,疊接整流器,共閘極整流器,開關控制, millimeter wave,RSSI system,power detector,low noise amplifier,double-transformer-coupling,transformer-based common gate amplifier,cascode rectifier,common gate rectifier,switch control, |
Publication Year : | 2019 |
Degree: | 碩士 |
Abstract: | 本論文主要研究毫米波接收訊號強度指示系統之功率偵測相關電路,操作頻率為V頻段及Q頻段,應用於無線通訊系統接收端之即時功率偵測。首先回顧各功率偵測相關電路之文獻,並介紹其架構、原理及應用目的,其中包括一低雜訊放大器及兩種功率偵測電路。
本論文第一個電路提出一V頻段低雜訊放大器,利用源極退化電感及雙重耦合變壓器架構達到低雜訊且高增益的目標,並搭配共源極放大器維持良好線性度,量測最高增益為21.5 dB,最低雜訊指數5.7 dB,於60 GHz下IP1dB為-21.4 dBm,IIP3為-10.6 dBm,直流功耗為16.3 mW。 第二個電路則提出一V頻段功率偵測電路,以單一電路將射頻訊號轉為輸出直流電壓,利用串接多個毫米波放大器及並聯整流器的連接系統,完成電路設計,使用變壓器共閘極放大器搭配共源級放大器加上疊接整流器,配合開關切換提高動態範圍,於55 GHz下功率偵測範圍由-33至5 dBm以上,動態範圍一共為38 dB以上,靈敏度最高為14.5 mV/dB,靜態直流功耗為8.8 mW。 最後提出一Q頻段功率偵測電路,因應功率偵測晶片後端的電路解析,將靈敏度作為首要考量,提供更廣的電壓範圍,以變壓器共閘極放大器搭配共閘極整流器實現,搭配開關切換提高靈敏度,於34 GHz下功率偵測範圍由-20至8.5 dBm,動態範圍一共為28.5 dB,靈敏度最高為46 mV/dB,靜態直流功耗為13.2 mW。 This thesis studies power detectors at V-band and Q-band for millimeter wave RSSI system and is proposed to measure power in real time for wireless communication system. First, this thesis reviews literatures related to power detector circuits as well as introduces their structures, theory and applications. This thesis presents a low noise amplifier and two power detectors. This thesis first proposes a V-band low noise amplifier. It attains low noise and high gain by using source degeneration and double-transformer-coupling structure, along with common source structure to maintain outstanding linearity. The measured maximum gain achieves 21.5 dB with minimum noise figure 5.7 dB, IP1dB -21.4 dBm and IIP3 -10.6 dBm at 60 GHz. The amplifier consumes 16.3 mW dc power. Secondly, in order to convert rf power into dc output voltage with single circuit, this thesis proposes a V-band power detector by utilizing successive millimeter amplifiers and rectifiers in parallel to fulfill its design. Transformer-based common gate amplifier, common source amplifier and cascode rectifier along with switch control are used to increase detector’s dynamic range. The measured detectable range is from -33 dBm to over 5 dBm with dynamic range of at least 38 dB, maximum sensitivity of 14.5 mV/dB at 55 GHz and only 8.8 mW for quasi-dc power consumption. Finally, a Q-band power detector is proposed to meet the demand of sensitivity for next stage like ADC. Taking sensitivity as the first priority, Transformer-based common gate amplifier and common gate rectifier along with switch control are used to offer wider voltage range. The measured detectable range is from -20 dBm to 8.5 dBm, with dynamic range of 28.5 dB, with maximum sensitivity of 46 mV/dB at 34 GHz and only 13.2 mW for quasi-dc power consumption. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71515 |
DOI: | 10.6342/NTU201900305 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 電子工程學研究所 |
Files in This Item:
File | Size | Format | |
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ntu-108-1.pdf Restricted Access | 6.11 MB | Adobe PDF |
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