Mune akagoverwa antenna masisitimu (DAS), vashandisi vangasarudza sei akakodzera magetsi ekupatsanura uye macouplers?

Mumanetiweki emazuva ano ekutaurirana, Distributed Antenna Systems (DAS) yave mhinduro yakakosha kune vashandisi kugadzirisa kuvharika kwemukati, kuwedzera simba, uye akawanda-bhendi chiratidzo chekufambisa. Kuita kweDAS hakungoenderane chete neantennas pachayo asi zvakare zvakanyanya kukanganiswa nezvinhu zvakasiyana-siyana mukati meiyo sisitimu, kunyanya magetsi anopatsanura uye anotungamira couplers. Kusarudza izvo zvakaringana zvinotemesa chiratidzo chekuvhara mhando uye netiweki mashandiro ekushanda.

I. Basa reMagetsi eSimba muDAS

Magetsi emagetsi anonyanya kushandiswa kugovera zvisizvo zviteshi zvepasi kune akawanda emukati antenna madoko, achigonesa kufukidzwa munzvimbo dzakawanda.

Mafungiro Akakosha Pakusarudza Simba Splitter:

Insertion Loss
Kuderera kwekuisa kurasikirwa kunoguma nepamusoro-soro kutapurirana kwechiratidzo. Mumapurojekiti makuru emukati ekuvhara, vashandisi vanowanzo sarudza yakaderera-kurasikirwa kwemagetsi kupatsanura kuderedza kupera kwemagetsi.

Port Isolation
Kuzviparadzanisa nevamwe kunoderedza crosstalk pakati pezviteshi, kuve nechokwadi chekuzvimiririra pakati pemaantenna akasiyana.

Simba Kubata Kugona
Mumamiriro ekushandiswa kwesimba repamusoro-soro (semuenzaniso, DAS munzvimbo huru), zvakakosha kuti usarudze magetsi anopatsanura anokwanisa kubata simba rekuisa repamusoro kuti ave nechokwadi chekushanda kwakagadzikana kwenguva refu.

II. Iko Kushandiswa kweVaviri muDAS

Vakaroorana vanoshandiswa kuburitsa chikamu chechiratidzo kubva kuhunde huru yekudyisa antenna munzvimbo dzakatarwa dzemukati, senge mikoridho kana kugovera pasi.

Zvinhu Zvinokosha Pakusarudza Vakaroorana:

Coupling Value
Zvakajairwa kubatanidza kukosha zvinosanganisira 6 dB, 10 dB, uye 15 dB. Iko kukosha kwekubatanidza kunokanganisa simba rakagoverwa kune antennas. Vashandi vanofanirwa kusarudza iyo yakakodzera yekubatanidza kukosha zvichienderana nekuvhara zvinodiwa uye huwandu hwema antennas.

Directivity uye Kuzviparadzanisa nevamwe
High-directivity couplers inoderedza kuratidzwa kwechiratidzo, kuwedzera kugadzikana kweiyo huru trunk link.

Low PIM Hunhu
Mu5G uye akawanda-bhendi DAS masisitimu, yakaderera Passive Intermodulation (PIM) couplers inonyanya kukosha kudzivirira kupindira kwekupindira uye kuve nechokwadi chechiratidzo chemhando.

III. Maitiro Anoshanda eKusarudza eVashandi

Mukutumirwa kweinjiniya, vashandisi vanowanzo tarisa zvinotevera zvinhu kuti zvinyatso sarudza magetsi anopatsanura uye macouplers:

Coverage Scenario Scale: Zvivakwa zvidiki zvehofisi zvinogona kushandisa 2-nzira kana 3-nzira kupatsanura magetsi, nepo nhandare huru kana nhandare dzendege zvinoda musanganiswa wematanho emagetsi ekupatsanura uye akasiyana macouplers.

Multi-Band Tsigiro: Yemazuvano DAS inofanirwa kutsigira frequency renji kubva pa698-2700 MHz uye kunyange kuwedzera kusvika 3800 MHz. Maoperator anofanirwa kusarudza passive components inoenderana neakazara frequency mabhendi.

System Balance: Nekunzwisisa kusanganisa magetsi anopatsanura uye macouplers, vanoshanda vanogona kuve neakaenzana simba rechiratidzo munzvimbo dzese, kudzivirira kuvhara mapofu kana kufukidzira zvakanyanya.

Chengdu Concept Microwave Technology CO., Ltd inyanzvi inogadziraPassive microwave zvikamu yeDAS system, kusanganisira iyo RF lowpass sefa, highpass sefa, bandpass sefa, notch sefa/bhendi stop filter, duplexer, Power divider uye directional coupler. Ese anogona kugadzirwa zvinoenderana nezvinodiwa zvako.

Kugamuchirwa kuwebhu yedu:www.concept-mw.comkana kutibata pa:sales@concept-mw.com