应用于L波段风廓线雷达的2kW限幅器设计
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摘要
边界层风廓线雷达为气象预报服务提供垂直性、连续性、高时空分辨率的探测数据。针对在全国各雷达站集中式雷达运行过程中限幅器频繁烧毁导致雷达停止工作的问题,设计了一种L波段2kW高功率无源限幅器。此款限幅器在电路前端引入双耦合电缆和功率电阻,增加了散热能力,一分为二限幅,使通过PIN二极管的功率降低一倍,电路后端多级二极管并联,逐级平缓限幅;具有承受功率高,限幅电平低,插入损耗小的特点。利用ADS软件进行仿真,并对限幅器进行了测试,结果表明各项指标满足设计要求。此款限幅器在边界层风廓线雷达上的应用,极大地提高了雷达稳定性。
The Boundary Layer Wind Profile Radar(WPR)provides vertical,continuous,and high spatial/temporal resolution detection data for weather forecasting services.Because the frequent burning of limiters during operation in centralized radar stations across China,an L-band high-power passive limiter is designed,which introduces dual-coupling cables and a power resistor at the front part of the circuit,divided into two limits and increased heat dissipation,to theoretically reduce the power by half through the PIN diode;the multi-stage diodes are in parallel at the back end,and the limiting process is gradual.The limiter is characterized by high withstand power,low limiting level and low insertion loss.Using ADS software for simulation,the limiter is tested,and the results meet the requirements of design.Application of this limiter in the boundary layer WPR greatly improves radar stability.
The Boundary Layer Wind Profile Radar(WPR)provides vertical,continuous,and high spatial/temporal resolution detection data for weather forecasting services.Because the frequent burning of limiters during operation in centralized radar stations across China,an L-band high-power passive limiter is designed,which introduces dual-coupling cables and a power resistor at the front part of the circuit,divided into two limits and increased heat dissipation,to theoretically reduce the power by half through the PIN diode;the multi-stage diodes are in parallel at the back end,and the limiting process is gradual.The limiter is characterized by high withstand power,low limiting level and low insertion loss.Using ADS software for simulation,the limiter is tested,and the results meet the requirements of design.Application of this limiter in the boundary layer WPR greatly improves radar stability.
引文
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[14]Jian K K,Smith P W.Fast-rise-time pulse transformersbuilt from rotated stacked 1:1transformers[J].IEEETrans on Plasma Science,2006,34(5):1853-1857.
[15]Jian Qiu,Kefu Liu,Yifan Wu.A pulsed powersupply based on power semi-conductor switches andtransmission line transformer[J].IEEE Transactionson Dielectrics and Electrical Insulation,2007,14(4):927-930.
[16]Looney J,Conway D,Bahl I.An examination of recovery time of an integrated limiter/LNA[J].IEEE Microwave Magazine,2004,5(1):83-86.
[2]花丛,刘超,张恒德.风廓线雷达资料在北京秋季雾霾天气过程分析中的应用[J].气象科技,2017,45(5):870-875.
[3]汤建国,周红根,周良,等.CINRAD/SA雷达中微波器件故障判别[J].气象科技,2011,39(2):222-226.
[4]Bera S C,Bharadhwaj P S.Insight into PIN diode behavior leads to inproved control circuit[J].IEEE trans on Circuits and Systems,2005,52(1):124.
[5]潘新民,柴秀梅,崔柄俭,等.CINRAD/SB雷达接收机技术特点及故障诊断方法[J].气象科技,2001,39(3):320-325.
[6]Devlin L M,Dearn A W,Beasley P D L.A monolithic,dual channel,0.5to 20GHz limiter[C]∥Microwave Conference,2000.European,IEEE,2000:1-4.
[7]Smith D G,Heston D D,Heston J.Designing reliable highpower limiter circuits with GaAs PIN diodes[C]∥Microwave Symposium Digest,2002IEEE MTT-S International.IEEE,2002:1245-1247vol.2.
[8]刘军霞,蒋东铭,陈新宇.微波大功率,低限幅电平的砷化镓pin管限幅器单片电路:CN,CN 101938259A[P].2011.
[9]金杰,冯军,盛志伟,等.0.18μm CMOS 10Gb/s光接收机限幅放大器[J].电子学报,2004,32(8):1393-1395.
[10]顾颖言.PIN管控制电路功率容量的确定[J].现代雷达,2005,27(3):60-64.
[11]Ludwig R,Bretchko P.RF Circuit Design:Theory and Applications[M].Prentice Hall,Upper Saddle River,NJ 07458,2001:185-199.
[12]Skyworks Inc.PIN limiter diodes in receiver protectors[R/OL].Skyworks Inc.[2018-04-28].http:∥www.Skyworksinc.com.
[13]Gipprich J W,A new class of branch-line directional couplers[C]∥IEEE MTT-S Microwave Symp,Digest,1993.
[14]Jian K K,Smith P W.Fast-rise-time pulse transformersbuilt from rotated stacked 1:1transformers[J].IEEETrans on Plasma Science,2006,34(5):1853-1857.
[15]Jian Qiu,Kefu Liu,Yifan Wu.A pulsed powersupply based on power semi-conductor switches andtransmission line transformer[J].IEEE Transactionson Dielectrics and Electrical Insulation,2007,14(4):927-930.
[16]Looney J,Conway D,Bahl I.An examination of recovery time of an integrated limiter/LNA[J].IEEE Microwave Magazine,2004,5(1):83-86.
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