Usayizi Omncane We-Waveguide Terminations RF Microwave Short Length

Usayizi Omncane We-Waveguide Terminations RF Microwave Short Length

Izici:

Inani eliphakeme kakhulu lama-VSWR

Izicelo:

Ama-Transmitter
Izimpondo
Ukuhlolwa Kwelabhorathri
Ukufanisa Impedan

XHUMANA MANJE

Ukuqedwa kwe-Waveguide yosayizi omncane

Ukunqanyulwa kwe-waveguide yosayizi omfushane kuyisakhiwo se-waveguide esiklanywe ngokukhethekile esinobukhulu obufushane ngokuqhathaniswa, esisetshenziselwa ukumunca futhi kuhlakaze amandla amasiginali we-microwave enamandla aphansi, ngaleyo ndlela kuzuzwe ukusetshenziswa kwamasiginali angadingekile kusekethe. Umgomo wokunqanyulwa kwe-waveguide kasayizi omfushane usekelwe ezindleleni ezimbili: ukucabangela nokumuncwa. Uma isignali ye-microwave idlula ekunqanyulweni kosayizi omfushane ku-waveguide, enye isignali izoboniswa emuva kumthombo, futhi enye ingxenye yesiginali izomuncwa ukunqanyulwa kwe-waveguide. Ngokuklama nokukhethwa okufanele, ukulahlekelwa kokubonisa kungancishiswa futhi ukulahlekelwa ukumuncwa kungenziwa kukhuliswe.

Izici:

1. Ukuba nesakhiwo esilula.
2. Usayizi ohlangene
3. Izindleko zokukhiqiza eziphansi
4.Inkomba yegagasi elimile lihle kakhulu.

Isicelo:

1. Ukulungisa iphutha nokuhlolwa kwesiyingi: Imithwalo ye-waveguide yosayizi abancane ivame ukusetshenziswa ekulungiseni nasekuhlolweni kwamasekhethi e-microwave. Ngokuxhuma ukunqanyulwa kwe-waveguide embobeni yokuphumayo yesekethe ezohlolwa, ukubonakaliswa kwesignali kungavinjelwa, ngaleyo ndlela kuvikelwe izingxenye zesekethe emonakalweni futhi kuqinisekiswe imiphumela yokuhlola enembile nethembekile.
2. Isilinganiso se-reflection coefficient: Ngokulinganisa i-reflection coefficient, ukusebenza okufanayo kwesekethe engaphansi kokuhlolwa kungahlolwa. Ukuqedwa kwe-waveguide yobude obufushane kungasetshenziswa njengokunqanyulwa kwereferensi okujwayelekile, futhi uma kuqhathaniswa nesekhethi engaphansi kokuhlolwa, ngokulinganisa ukushuba kwesignali ebonisiwe, i-coefficient yokubonisa ingabalwa futhi ukusebenza okufanayo kwesekethe kungahlaziywa.
3. Ukukalwa komsindo: Imithwalo ye-Waveguide yobude obufushane nayo idlala indima ebalulekile esilinganisweni somsindo. Ngokusebenzisa izici zayo zokumunca, amasignali omsindo angadliwa ngokuphumelelayo, ngaleyo ndlela kuncishiswe ukuphazamiseka komsindo phakathi nokulinganisa.
Ukuhlolwa kwesistimu ye-antenna ne-RF: Ekuhlolweni kwe-antenna kanye nesistimu ye-RF, imithwalo ye-Microwave ingasetshenziswa ukulingisa ukusetshenziswa okungewona kwamandla kwemvelo lapho i-antenna ikhona. Ngokuxhuma ukunqanyulwa embobeni yokukhipha i-antenna, ukusebenza kwe-antenna nohlelo kungahlolwa, kulinganiswe, futhi kuthuthukiswe.

Qualwaveihlinzeka nge-VSWR ephansi kanye nokunqanyulwa kwe-waveguide kasayizi omncane kuhlanganisa ibanga lemvamisa elingu-5.38~40GHz. Ukunqanyulwa kusetshenziswa kabanzi ezinhlelweni eziningi.

Inombolo Yengxenye	Imvamisa (GHz, Min.)	Imvamisa (GHz, Max.)	Amandla (W)	I-VSWR (Ubuningi.)	Usayizi we-Waveguide	I-Flange	Isikhathi esiholayo (Amaviki)
QWTS28-15	26.3	40	15	1.2	I-WR-28 (BJ320)	I-FBP320	0~4
QWTS34-15	21.7	33	15	1.2	I-WR-34 (BJ260)	I-UG COVER	0~4
QWTS42-15	17.6	26.7	15	1.2	I-WR-42 (BJ220)	FBP220	0~4
QWTS51-20	14.5	22	20	1.2	I-WR-51 (BJ180)	I-UG COVER	0~4
QWTS62-20	11.9	18	20	1.2	I-WR-62 (BJ140)	I-FBP140	0~4
QWTS75-20	9.84	15	20	1.2	I-WR-75 (BJ120)	I-FBP120	0~4
QWTS75-30	9.84	15	30	1.2	I-WR-75 (BJ120)	I-FBM120	0~4
QWTS90-20	8.2	12.5	20	1.2	I-WR-90 (BJ100)	I-FBP100	0~4
QWTS112-30	6.57	10	30	1.2	I-WR-112 (BJ84)	FBP84	0~4
QWTS137-30	5.38	8.17	30	1.2	I-WR-137 (BJ70)	FDP70	0~4