Midziyo inoshanda inozivikanwa kuve isina mutsara mhedzisiro pane system. Nzira dzakasiyana-siyana dzakagadzirwa kuti dzivandudze kushanda kwemidziyo yakadaro panguva yekugadzira uye kushanda kwezvikamu. Zviri nyore kufuratira kuti passive mudziyo unogona zvakare kuunza nonlinear mhedzisiro iyo, nepo dzimwe nguva idiki, inogona kukanganisa zvakanyanya mashandiro ehurongwa kana ikasagadziriswa.

PIM inomirira "passive intermodulation". Inomiririra chigadzirwa che intermodulation chinogadzirwa kana maviri kana anopfuura masaini achifambiswa kuburikidza nechinhu chisingaiti chine maitiro asina mutsara. Kudyidzana kwezvikamu zvakabatana zvine mutsindo zvinowanzokonzera zvisingaite, izvo zvinonyanya kutaurwa panosangana simbi mbiri dzakasiyana. Mienzaniso inosanganisira yakasununguka tambo dzekubatanidza, zvibatanidza zvisina kuchena, kusaita zvakanaka duplexer, kana kuchembera antennas.

Passive intermodulation idambudziko rakakura muindasitiri yekukurukurirana kwemafoni uye rakaoma kwazvo kugadzirisa. Mumaserura ekutaurirana masisitimu, PIM inogona kukonzera kupindira, kuderedza inonzwa yekugamuchira, kana kuvharira kutaurirana zvachose. Kuvhiringidza uku kunogona kukanganisa sero rinorigadzira, pamwe chete nevamwe vanogamuchira vari pedyo. Semuenzaniso, muLTE band 2, iyo downlink range i1930 MHz kusvika 1990 MHz uye iyo uplink renji ndeye 1850 MHz kusvika 1910 MHz. Kana vaviri vanotakura vatakuri pa1940 MHz uye 1980 MHz, zvichiteerana, kufambisa masaini kubva kune base station system nePIM, kupindirana kwavo kunoburitsa chikamu pa1900 MHz chinowira mubhendi rekugamuchira, iro rinobata anogamuchira. Uye zvakare, intermodulation pa2020 MHz inogona kukanganisa mamwe masisitimu.

Sezvo iyo spectrum inowedzera kuwanda uye zvirongwa zvekugovera antenna zvawanda, mukana wekupindirana kwevatakuri vakasiyana vachigadzira PIM inowedzera. Maitiro echinyakare ekunzvenga PIM nekuronga frequency ari kuramba asingaite. Pamusoro pezvinetso zviri pamusoro, kutorwa kwezvirongwa zvitsva zvedhijitari modulation seCDMA/OFDM zvinoreva kuti simba repamusoro rehurongwa hwekutaurirana riri kuwedzera, zvichiita kuti dambudziko rePIM “rinyanye”.

PIM idambudziko rakakurumbira uye rakakomba kune vanopa masevhisi uye vatengesi vemidziyo. Kuona uye kugadzirisa dambudziko iri zvakanyanya sezvinobvira kunowedzera kuvimbika kwehurongwa uye kunoderedza mari yekushandisa.

Semugadziri weRF duplexers, Jingxin inogona kukubatsira pane nyaya yeRF duplexers, uye gadzirisa zvinhu zvisingaite zvinoenderana nemhinduro yako. Mamwe mashoko anogona kubvunzwa nesu.