【应用】K波段射频开关在无人机远程测距中的应用

时间： 2019-07-27 来源：世强

技术问答

【摘要】出于成本方面的考虑，一发两收的24GHz雷达收发芯片配合射频开关的两收四发六通道方案成为无人机防碰撞的最佳选择。UMS推出一款可以在一发两收24GHz雷达芯片基础上扩展成两发四收六通道的K波段SP4T射频开关芯片CHS2412-QDG。在4×4mm封装内集成了四路开关，可以将一发两收24GHz雷达芯片通过开关切换轻松扩展成两发四收或一发八收模式。

随着消费级无人机应用领域不断拓展，安全问题逐渐显现出来。无人机对飞行活动范围内的其它飞行器和地面物体都存在很大的安全隐患，可能引发空中相撞和地面撞击，因此避障技术是无人机自动化的关键挑战。

在远程测距应用中推荐采用24GHz微波雷达技术，其探测距离、扫描宽度和信号质量都满足无人机避障应用。无人机在空中飞机活动比较复杂，需要多通道24GHz微波雷达才能实现准确的避障行为。目前主流的24GHz雷达收发芯片都是一发两收三通道，为了同时满足前向和侧向探测，需要多通道24GHz雷达方案。出于成本方面的考虑，一发两收的24GHz雷达收发芯片配合射频开关的两收四发六通道方案成为最佳选择，其中适用于24GHz雷达信号的射频开关需要以下几方面的要求。

1）射频开关用于一发两收24GHz雷达收发芯片的接收和发射端，要求开关的插入损耗尽量低。
2）开关在发射端口时，泄露在其它端口的信号会影响接收性能，因此要求端口高隔离度。
3）24GHz雷达多通道收发需要利用开关切换，因此要求开关切换时间尽量短。

结合以上24GHz射频开关的需求，国际著名的MMIC半导体供应商UMS推出一款K波段SP4T射频开关芯片CHS2412-QDG，可以在一发两收24GHz雷达芯片基础上扩展成两发四收六通道。

CHS2412-QDG在4×4mm封装内集成了四路开关，可以将一发两收24GHz雷达芯片通过开关切换轻松扩展成两发四收或一发八收模式。以UMS推出的SP4T射频开关CHS2412-QDG和24GHz集成一发两收的雷达芯片CHC2442-QPG组成的多通道无人机测距雷达功能框图如下：

SP4T射频开关CHS2412-QDG的插入损耗典型值是2.9dB，可以有效的降低因加入开关带来的接收端和发射端损耗，提高多通道雷达的探测距离；开关隔离度最小是32dB，可以保证在最大发射功率下泄露到其它端口功率小于-25dBm，降低对接收端的影响；开关切换速度是典型值是30ns，远小于多通道雷达切换微秒级的要求，可以提高探测结果的响应速度。24GHz射频开关CHS2412-QPG在多通道24GHz探测雷达方案中主要起到扩展接收和发射通道数量的作用，可以通过多通道发射和接收信息兼顾探测距离和扫描宽度的需求，既可完成窄波束探测距离加强碰撞预警的前向应用，还可以增加波束宽度加强侧向应用功能。

总之，SP4T射频开关CHS2412-QDG以其低插入损耗、高速开关切换和高隔离度的优势，可以帮助一发两收24GHz雷达探测系统轻松切换成时分两发四收系统，方位测量性价比更高。

以下是CHS2412-QDG开关的其它特性：
• 频率范围：23-26GHz
• 回波损耗：-15dB
• 输入1dB压缩点：18dBm
• 开关切换时间：30ns
• 工作温度：-40105
• 工作电压：5V
• 湿敏等级：MSL1

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UMS 射频MMIC芯片选型指南

描述- UMS has a comprehensive offer based on the supply of either ASIC or catalogue products, in the main based on the Company’s internal III-V technologies and through the provision of a comprehensive foundry service, allowing customers to directly create their own product solutions.

型号- CHA7618-99F,CHA2441-QAG,CHV2421-QDG,CHT4016-99F,CHA5618-99F,CHK9013-99F,PPH25,CHA6105-99F,CHA4105-99F,CHR3693-QDG,CHA4314-98F,CHX2095A99F,CHP3015-QDG,CHC2444-QBB,PH25,CHA5266-FAB,CHR3352-QEG,CHA3664-QAG,CHA7115-99F,CHA3514-99F,CHC6094-QKB,CHV3241-QDG,CHR2411-QDG,CHA5115-99F,CHS5104-QAG,CHA6652-98F,CHA8012-99F,CHA8362-99F,PH10,CHA6551-99F,CHA6652-QXG,CHA5005-QDG,CHP4014-98F,PH15,CHA4253AQQG,CHW4313-QAG,CHA3398-98F,CHA6095-QKB,CHA2494-98F,CHT3029-99F,CHT3091A99F,CHR3762-QDG,CHA7453-99F,CHP4014-QEG,CHT4690-QAG,CHR3364-QEG,CHA3395-98F,CHA2293-99F,CHX1191-QDG,CHV1203-FAB,CHP4010-99F,CHX2089-99F,CHA5266-99F,CHA4253-FAB,CHW4312-QKA,CHA2159-99F,CHE1260-QAG,PPH15X,CHA6005-99F,CHA3656-QAG,CHR3662-QDG,CHW4213-QAG,CHU3377-98F,CHR3693-FAB,CHA5014-99F,CHKA012A99F,CHZ180A-SEB,CHT4694-QAG,CHX2092A99F,BES,CHA7250-QAB,CHA2368-98F,CHR1080A98F,CHA7060-QAB,CHX2193-FAB,CHA2394-99F,CHT4690-FAB,HB20M,CHM2179B98F,CHA3092-99F,CHA7063-QCB,CHA3090-98F,CHA8252-99F,CHZ180AASEB,CHK015AAQIA,CHP3010A98F,CHA3511-99F,CHA2595-98F,CHX1162-QDG,CHR1080A99F,CHT4016-QEG,CHP1102-QGG,CHA4105-QDG,CHR3693-99F,CHA2069-QDG,CHW4212-QKA,CHA6682-98F,CHP1102-98F,CHA2090-99F,CHA1010-99F,CHU2277-99F,CHR3394-QEG,CHA4350-QDG,CHA3801-99F,CHR3663-QEG,CHX2193-99F,CHC1443-QRA,CHX1191-98F,CHA3666-99F,CHM1080-98F,CHR3763-QDG,CHS8618-99F,CHA7452-99F,CHA3409-98F,CHA2362-98F,GH25,CHA5266-QDG,CHR3764-QEG,CHT3029-QEG,CHA3024-QGG,CHA2098B99F,CHT3091-FAB,CHA2352-98F,CHR2294-99F,CHA3063-99F,CHA3395-QDG,CHK8015-99F,GH15,CHA6550-98F,CHA2494-QEG,CHA8611-99F,CHR2270-QRG,CHA8710-QDB,CHA2066-99F,CHM1291-99F,CHA3801-FAB,CHP4511-99F,CHA8710A99F,CHS5104-FAB,CHK5010-99F,CHP4012A98F,CHA3080-98F,CHA6550-QXG,CHA5659-98F,CHM1294-99F,CHK8101-SYC,CHX2090-QDG,CHA3512-99F,CHK8013-99F,CHA1008-99F,CHA8618-99F,CHA2190-99F,CHA5350-99F,CHS5100-99F,CHA3565-QAG,CHA6682-QKB,CHV1203A98F,CHA5659-QXG,CHP3010-QFG,CHT4660-QAG,CHA3688AQDG,CHA3024-99F,CHA4253A98F,CHA7062-QCB,CHA3801-QDG,CHR3664-QEG,CHA2110-QDG,CHX2192-99F,CHR3362-QEG,CHA2595-QDG,HP07,CHA4107-99F,CHA3396-QDG,CHA2069-99F,CHR2421-QEG,CHT4699-QDG,CHZ015AAQEG,CHS5104-99F,CHP1102-QDG,CHT4690-99F,CHR3861-QEG,CHP4012-QEG,CHA8100-99F,CHT3091AQAG,CHX3068-QDG,CHR3894-98F,CHZ8012-QJA,CHA2266-99F,CHS2411-QDG,CHV1206A98F,CHA8352-99F,CHA3218-99F,CHR2295-99F,CHA7455-99F,CHA2069-FAB,CHP6013-SRF,CHA1077A98F,CHX2091-99F,CHA2193-99F,CHA3666-FAB,CHA3024-FDB,CHM1290-99F,CHA8610-99F,CHT4694-99F,CHM2378A99F,CHA6710-FAB,CHA2157-99F,CHU2277A98F,CHS7012-99F,CHA8254-99F,CHA2110-98F,CHA3023-99F,CHKA011ASXA,CHA3656-FAB,CHC3014-99F,CHA6262-99F,CHA8262-99F,CHKA012BSYA,CHM1270A98F,CHT4012-QDG,CHA2411-QDG,CHA6094-QKB,CHP3015-99F,CHE1260-98F,CHA4107-QDG,CHA3513-99F,CHA5115-QDG,CHA2063A99F,CHK9014-99F,CHA7114-99F,CHK8201-SYA,CHA3397-QDG,CHA2080-98F,CHV2411AQDG,CHA3665-QAG,CHE1270-QAG,CHA2292-99F,CHT4660-FAB,CHV2240-99F,CHA8312-99F,CHA6710-99F,CHC2442-QPG,CHA3398-QDG,CHA6653-QXG,CHA3666-QAG,CHA7215-99F,CHA6354-QQA,CHK8101A99F,CHA4102-QEG,CHA4220-98F,CHC6054-QQA,CHR2291-99F,CHS5105-QAG,CHA6653-98F,CHA6362-QXG,CHA6005-QEG,CHA2066-QAG,CHT4012A98F,CHV2243A99F,CHA8054-99F,CHZ9012-QFA,CHA6282-QCB,CHX2090-99F,CHA3689-99F,CHE1270A99F,CHR3894-QEG,CHA6194-QXG,EC2612-99F,CHR2296-99F,CHE1270A98F,CHA6356-QXG,CHA8612-QDB,CHM1298-99F,CHA6357-QKB,CHA8212-99F,CHA4220-QGG

选型指南 - UMS - 2024/5/21 PDF 英文下载

西南集成射频开关选型表

西南集成射频开关选型：工作电压 (V)：2.7-5.5，工作电流 (mA)：0.1-0.3，插损 (dB)：0.3-2，OP-1 (dBm)：29-46，OIP3 (dBm)：45-70.

产品型号	品类	最高工作频率 (Hz)	工作电流 (mA)	OP-1 (dBm)	插损 (dB)	OIP3 (dBm)	隔离度 (dB)	工作电压 (V)	最低工作频率 (MHz/GHz)	封装形式
XND230	射频开关	5G	0.2	33	0.5	60	50	3~5.5	50MHz	QFN20

选型表 - 西南集成立即选型

ELETE（盛柏电子）连接器选型指南（简版）

目录- Company Profile New Arrivals Board to Board Floating Connector Press-fit Pin/Connector Terminal Four Contacts Female Header OEM/ODM Board To Board Connector OEM POGO Pin Box Header/Ejector Header Male Header/Female Header Round Pin Header FPC/IDC Connector D-SUB Wafer/Housing/Terminal MINI Bridge(OEM) Battery Holder Cable

型号- HMJDS17,HMISVH25,EL-2018,EL-2017,DV29PXX01,FCZGSVB4,FCZGSVB3,EL-2011,M18M0208,M18M0205,HFNSR81,WFLDM01-A001 SERIES,HMNTR15,HMFDMH10,FCZGSVA6,HMGSP15,FCZGSVA5,M18F0108,HFLDM20,FCZGSVA4,WFHSH1 SERIES,EL4029-003TT,UFL-SMA,BXLDMH01-P001 SERIES,HMJDMH25,HMISVH10,15-38-8140,HMISVH15,HMISVH17,HFLST43,FCZGSVA3,EL1738-5P,FCZGSVA2,BMDDM8,IDTS01,HMJDS25,HFPSM89,HMNTR25,BXJDM02-SERIES,HMLSV20,TFN122-00151X-T,BXNDR01,HFNSS8Y,DIP-25S,HMLDSH20,BXNDR02,HFLDM35,HFJDS46,HMJDMH17,HMISVH20,WFLDM03-A100 SERIES,02-09-1134,HMLDP20,HDB15P-BL,BXJDR02-SERIES,TXZ103-001XXX-T,FCZGSHD5,WFHSV1,LVDS0550AL,HFIDM44-P048,HFGSP35,HMMDM53,HFLDM40,HDB26S-BK,HFLDM43,HMLSV15,TFX103-001XXX-T,HFNTS8Y,FCZGSHD4,EL1508-8P,FCZGSHD3,FCZGSHD2,HFLDM46,FCZGSHD1,BFZDM,FCZSHD1,HMNSP25,HMLSSH20,HMLDP15,HFLSS40,HMNSNH25,HFLSS43,M12M0104R,JKT4S2 SERIES,TXZ108-001XXX-T,HFLDM51,M12M0104W,HMNSP30,HFNRSM30,HFNSR8Y,HMLSSH15,BXNDS02,HFLSS46,BXNDS01,DB25S02IDC,WF42090 SERIES,EL5057-004AA,HFIDS44,HMNDMH25,HFLDM51-P090,HMLSS15,HMNSS20,JKT1S1,HMIDS17,HFNSS68,HMIDS10,BXLDM03-SERIES,HMLDM20,HMNSS25,HMIDS15,HDB62P-BK,TXZ104-001XXX-T,HMLDM15,HMNDM43,BXLDSH01,HFLSV40,HFNDM71,EJNDM01,HFNSS50,HFNST71,BXLDS02-SERIES,HFIRDM30,HFNSS57,35362-0950,HFLSV43,HFLSV46,HMIDS20,HMNSR15,HMIDS25,HMLSRH20,BXNDS01-T006 SERIES,HFJDS85,1-1734741-9,HMJDR17,FFC0520AL,HFLDT43-T002,WFLDM01-A001,HFNDM85,EL-2035,FCZSVC1,HFNSS85,FCZSVC2,BXIDSH-SERIES,BXIDM11-17 SERIES,ELHFI201,HFNDM81,BXNDS02-SERIES,HMPSN31,HMNSR20,HMIDMH10,HMNTS15,EJNDR01-A004 SERIES,HFLDP63,BFDDM8,BXIDM03,HMIDMH15,BXIDM01,EL-300118650,HMLSRH15,HMNSR26,HMNSR25,TXZ110-001XXX-T,HFIDS34,BXNDS01-T006,EL1751-7P,HFLQS63,HFNDM8Y,TXZ107-001XXX-T,WF5DR88,HMIDMH17,FCZGSVC3,HMPSSH31,FCZSVB1,HFNSS71,HFNSR50,BXLDS05-SERIES,HMJDR25,HMIDMH20,IDTBPS01,HMNTS25,FCZSVB2,WFLDR01-A001,HMIDMH25,HFNSR57,HMLQR20,HFLTS63,90500-4007,HMNSRH15,JKD3R1,TNC,TMX106-001XXX-T,HFNSN85,HFLRDM28,DSUBIDCL105,BXJDS02-SERIES,HMIDSH17,HMGSSH10,HMIDSH15,WFMR3,HMISSH25,HMISSH20,JKT4D5,HMGSSH15,HMIDSH10,JKD2R1 SERIES,JKT4D4,HFNSN71,JKT4S1 SERIES,TFN123-00151X-T,EJNDR01-A004,SMA,EJIDR01,HFLSP40,HFISV20,HMIDSH25,HFNRDS11,HMIDSH20,HDB15S-01,HMLSR20,HFIDR44,HMLSVH20,HFNSM81,BXJDM02,JKD2R1,HMNDRP-A001,ELPG2657,BMESV1 SERIES,SCSIHPCN36M,HMLSR15,BFDSVX02,HMIDR17,BFDSVX01,DV25XX01,HMIDR10,HMIDR15,HMLSVH15,DB15S01IDC,HFNDS11,HFLSP63,JKT1S1 SERIES,HFNRDS30,HMNDMH15,IDCNMCE,EJIDS01,HFIDR52,BXNDR02-SERIES,HMISSH17,LR4402P,HMISSH15,HFLDT45-T001,EL1-9S,HMIDR20,TFN125-00151X-T,HMISSH10,HMLSS20,HMIDR25,HMFDM10-SERIES,FCLHSR1,IDCIF,EL1-15SMT,HFJSS46,HMRSV25,FCLGS3R,FCLHSR2,CRD-DR-001,HMNSSH25,IDCIM,BXIDS11,HFNTR8Y,HMSRDS30,HMJDM17,TMX107-00101X-T,SMA-K,HFJDM57,HFNDSH8YP,BXNDSH01,FCLGS3B,HMISRH17,HFLDM63,HMISRH15,HMISRH10,HMLDMH15,WFNS2-21 SERIES,EL-300418650,HFLSR40,FCLGS4R,IDCNMCE02,BXIDS03-SERIES,IDCNMCE01,HFLSS63,EJNDS01-A003 SERIES,HFLSR43,HMNSSH15,HFLSR46,EL-18650AA01P,BXIDS01,HFIDM44-T050,HMJDM25,M12F0505,BXLDS04-SERIES,BXIDS03,HFJDM45,FCLGS4B,WFLDS04,EJLDM01,HMJSS17,HMISRH25,HMLSP20,HMISRH20,HMNSN15,MCX-IPX,TXZ109-001XXX-T,HMIDP10,DIP-37S01,EL-18650AA02P,HMFDS10-SERIES,BXNDS01-SERIES,HFISV34,HMNSN25,HMLSP15,BXLDM01,HMNSN20,BXLDM03,HMIDP17,HMIDP15,HMLTR20,IDCJF,02-09-2134,HFLSR63,HFNSN50,BXIDM03-SERIES,HMIDP20,HMNSRH25,FCZEHU20,DIP-15S01,EL-18650AA03P,BXIDR01,EJNDS01-A003,M12F0404,C3030WR-F SERIES,ELE01-DE-9X1,HMLDMH20,HFLRDM11,HFISV43,HMIDP25,EJNDM01-SERIES,HMGDS15,BMZDM,HMGDS10,HFLDR63-T002,HFJSS85,HMIDM10,IDCLF01,HMNDR15,HFIDM44,FCZSHV2,FCZSHV1,FCZSHV7,WFLDR01-A001 SERIES,HFISS34,FCZSHV4,DB15P01IDC,FCZSHV9,HMJDSH25,HMJSR25,HMIDM17,FCLNR1,EJLDR01-SERIES,HM2SV18,HMIDM15,B04B-PASK-1(LF)(SN),EL2888-1P,HFNDS57,IDCBX02,IDCBX01,HMGDR10,HMIDM20,FCZSDD05,HMNDS43,HFNDS71,HMNRDR30,IDCLF,EJNDS01,HFIDM52,HMNDR25,M12F0308,WFMR3 SERIES,FCZSHU1,IDCLM,M12F0305,BXNDR01-SERIES,HMISS10,HFISS43,BXLDMH01-P001,HFISR20,JKD3R1 SERIES,HMISS15,HMGDR15,HMIDM25,FCLNS1,HMISS17,HMLSN20,HFNSSH8YP,BXJDS02,HMLSNH20,HFNDS68,JKT4D5 SERIES,BXNDM01-SERIES,WF42090,WFLDR03-A100,HFNDS85,FCLGS1R,HFIDM20,FCZGSHU3,TXZ106-001XXX-T,FCZGSHU1,M12F0205,HMLSNH15,M12F0204,HMJSS25,M12M0505,HMLSN15,768290002,HFNDR57,FCLGS2R,EL2130-4P,IDCNM,WFHSV1 SERIES,IDCNF,HMNDR43,HMNRDS30,EJNDR01,BMESV2,BMESV1,BMESV3,BMEDM-P003,HFIDM34,BMEDM-P004,EJNDS01-SERIES,HMFDS10,BXIDR01-SERIES,HDB62S-BK,HMJSR17,HFISS20,HMJDSH17,IDTBPM01,BXJDR02,HFNDMH8YP,IDCJF3,HMNSVH15,ELHFIR201,HMISR20,M12F0105,HMGSV10,M12F0104,BFESV2,BFESV3,WFLSS,BFESV1,HMISR25,HMNSVH25,BXLDR01-SERIES,BXIDS01-SERIES,HFNDT35,IDCJF5,HMRSR25,M8F0104,BXLDSH01-SERIES,HFLSN43,HFLSN46,HFNDT50,BXNDSH01-SERIES,HMNDSH15,HFRSS89,HFLSN40,HMIDRH15,WFNS2-21,BXNDMH01-SERIES,TMX108-00101X-T,HMIDRH17,HM2DM18,42824-4002,HMIDRH10,HMNDSH25,HMRSS25,HFIRSM22,HMNDS15,WFLDR03-A100 SERIES,HFFDM30-SERIES,HMISS20,HMIDRH25,HFISR34,HMISS25,M12M0304,HMPSV31,HMJSSH17,HMRSS20,EJIDS01-SERIES,HMIDRH20,HFNDS35,HFNDS55,HFNDS50,HFNDT71,ELHMIR201,WFLDS03-A100 SERIES,FCZGHU15,HMNDS25,HFNRDM30,WFHSH1,BXNDM01,HMISR10,HMJSSH25,HFISR43,HMISR15,BXIDM11-17,EJNDR01-SERIES,EJIDM01,HMISR17,JKT4D4 SERIES,HMLDS20,EL-1206,EL-1205,EL-2413,H

选型指南 - ELETE - 2022/9/7 PDF 英文下载