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Diplexer inobata sei kukanganiswa kwemasaini mumasisitimu eLMR?


Diplexer chinhu chakakosha mumasisitimu eLMR (Land Mobile Radio), zvichiita kuti kutumira nekugamuchira panguva imwe chete pamabhendi akasiyana-siyana ema frequency.435-455MHz/460-480MHz Cavity DiplexerInobata kupindira kwemasaini mumasisitimu eLMR nenzira dzinotevera:

1. Kusefa kweBandpass
Diplexer inowanzo kuve nemafirita maviri ebandpass: rimwe rebhendi rekutumira (Tx) frequency (semuenzaniso, 435-455MHz) uye rimwe rebhendi rekugamuchira (Rx) frequency (semuenzaniso, 460-480MHz). Aya mafirita ebandpass anobvumira masaini ari mukati mehuwandu hwawo hwefrequency kuti apfuure nepo achideredza masaini ari kunze kweaya mabhendi. Izvi zvinonyatsoparadzanisa masaini ekutumira nekugamuchira, zvichidzivirira kupindirana pakati pawo. Semuenzaniso, diplexer inogona kuwana kupatsanurwa kwe30 dB kana kupfuura pakati pemaports ayo akaderera neakakwira, izvo zvakakwana kune akawanda maapplication.

2. Dhizaini Yekuzvimiririra Kwakanyanya
Mafirita emaburi anowanzo shandiswa muma diplexers emukati nekuda kwe Q factor yavo yakakwira uye kusarudza kwakanaka. Mafirita aya anopa kuparadzaniswa kwakanyanya pakati pema frequency bands maviri, zvichideredza kubuda kwesignal kubva ku transmit band kuenda ku receive band uye zvinopesana. Kuparadzaniswa kwakanyanya kunoderedza njodzi yekukanganiswa pakati pe transmit ne receive signals, zvichiita kuti system yekutaurirana ishande zvakanaka. Mamwe madhizaini e diplexer, akadai se high-rejection cavity duplexers, anogona kuwana mazinga ekudzivirira akakwira. Semuenzaniso, high-rejection cavity diplexer inogona kupa mazinga ekudzivirira e80 dB kana kupfuura, zvichidzivirira kukanganiswa zvinobudirira.

3. Kufananidza Impedance
Diplexer inoshandisa network dzinofananidza impedance kuti ive nechokwadi chekuti impedance inoenderana zvakanaka pakati penzira dzinotumira nekugamuchira uye antenna kana tambo yekutumira. Kufananidza impedance kwakakodzera kunoderedza kuratidzwa kwechiratidzo nemafungu akamira, nokudaro zvichideredza kukanganiswa kunokonzerwa nemasaini anoratidzwa. Semuenzaniso, diplexer's common junction yakagadzirirwa kuwana kuenzaniswa kwakanaka kwe impedance, ichiva nechokwadi chekuti impedance yekupinda pa frequency yekutumira iri 50 ohms uku ichipa impedance yakakwira pa frequency yekugamuchira.

4. Kupatsanura Nzvimbo
Mumasystem ekutaurirana ari pamwe chete, ma diplexer anogona kusanganiswa nedzimwe nzira dzakadai se antenna directionality, cross-polarization, uye transmit beamforming kuti pave nekudziviswa kwe signal interference munzvimbo yekupararira. Semuenzaniso, kushandisa directional antennas pamwe chete ne diplexers kunogona kuwedzera kuparadzaniswa pakati pe transmit ne receiver antennas, zvichideredza mukana wekupindirana kwe mutual interferences.

5. Chimiro Chidiki
Ma diplexer emumakomba ane chimiro chakamanikana, zvichivabvumira kubatanidzwa nema antenna kana zvimwe zvikamu. Kubatanidzwa uku kunoderedza kukura kwehurongwa hwese uye kuoma kwahwo ukuwo kuchideredza njodzi dzekupindira. Semuenzaniso, mamwe magadzirirwo e diplexer anosanganisira kugona kusefa mu common junction, zvichiita kuti chimiro chive nyore ukuwo chichichengetedza kushanda kwepamusoro.

Iyo435-455MHz/460-480MHz Cavity Diplexerinoshandisa kusefa kwebhendi, dhizaini yekuparadzanisa yakakura, kufananidza impedance, kupatsanura nzvimbo, nedzimwe tekinoroji kuti ishande zvakanaka mukupindira kwemasaini mumasisitimu eLMR. Izvi zvinoita kuti masaini anotumirwa nekugamuchira ashande ega pasina kupindirana, zvichivandudza kuvimbika uye kugadzikana kwemasisitimu ekutaurirana.

Si Chuan Keenlion Microwave ine sarudzo yakakura mu narrowband uye broadband configurations, inofukidza ma frequency kubva pa 0.5 kusvika 50 GHz. Yakagadzirwa kuti ikwanise kubata simba rekupinda rema watts gumi kusvika makumi matatu mu 50-ohm transmission system. Madhizaini e microstrip kana stripline anoshandiswa, uye akagadzirirwa kushanda zvakanaka.

Tinogonawogadzirisa RF Cavity Diplexerzvinoenderana nezvaunoda. Unogona kupinda papeji rekugadzirisa kuti upe zvinodiwa zvaunoda.
https://www.keenlion.com/customization/
E-mail:
sales@keenlion.com
tom@keenlion.com
Sichuan Keenlion Microwave Technology Co., Ltd.

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E-mail:

sales@keenlion.com

tom@keenlion.com

Sichuan Keenlion Microwave Technology Co., Ltd.


Nguva yekutumira: Chivabvu-30-2025