Paramita ndị bụ isi nke antenna - arụmọrụ nke ìhè na bandwit

2. Bandwit
A na-akọwa bandwit nke antenna dị ka "oke ugboro ole arụmọrụ nke ụfọdụ njirimara nke antenna na-ezute ọkọlọtọ ụfọdụ". Enwere ike ịtụle bandwit ahụ dị ka oke ugboro ugboro n'akụkụ abụọ nke ugboro etiti (na-ezo aka na ugboro resonant) ebe njirimara antenna (dịka impedance ntinye, ụkpụrụ ntụziaka, beamwidth, polarization, ọkwa sidelobe, gain, berth pointing, radiation efficiency) dị n'ime oke a na-anabata mgbe atụnyere uru nke ugboro etiti.
Maka antenna broadband, a na-egosipụtakarị bandwit dị ka oke nke ugboro elu na nke ala maka ọrụ a na-anabata. Dịka ọmụmaatụ, bandwit nke 10:1 pụtara na ugboro elu dị okpukpu iri nke ugboro ala.
Maka antenna dị warara, a na-egosipụta bandwit dị ka pasent nke ọdịiche ugboro ugboro na uru etiti. Dịka ọmụmaatụ, bandwit 5% pụtara na oke ugboro ugboro a na-anabata bụ 5% nke ugboro etiti.
N'ihi na njirimara nke antenna (ntinye mgbochi, ụkpụrụ ntụziaka, uru, polarization, wdg) na-agbanwe agbanwe ka ugboro ole na ole si dị, njirimara bandwit abụghị ihe pụrụ iche. Ọtụtụ mgbe, mgbanwe dị na ụkpụrụ ntụziaka na impedance ntinye dị iche. Ya mere, a chọrọ bandwit ụkpụrụ ntụziaka na bandwit impedance iji mesie ọdịiche a ike. Bandwit ụkpụrụ ntụziaka metụtara uru, ọkwa sidelobe, beamwidth, polarization na ntụziaka beam, ebe impedance ntinye na arụmọrụ radieshon metụtara bandwit impedance. A na-ekwukarị bandwit n'ihe gbasara beamwidth, ọkwa sidelobe, na njirimara ụkpụrụ.

Mkparịta ụka dị n'elu na-eche na akụkụ nke netwọk njikọ (transformer, counterpoise, wdg) na/ma ọ bụ antenna anaghị agbanwe n'ụzọ ọ bụla ka ugboro ole na-agbanwe. Ọ bụrụ na enwere ike ịgbanwe akụkụ dị mkpa nke antenna na/ma ọ bụ netwọk njikọ nke ọma ka ugboro ole na-agbanwe, enwere ike ịbawanye bandwit nke antenna dị warara. Ọ bụ ezie na nke a abụghị ọrụ dị mfe n'ozuzu, enwere ngwa ebe enwere ike iru ya. Ihe atụ kachasị bụ antenna redio na redio ụgbọ ala, nke na-enwekarị ogologo a na-agbanwe agbanwe nke enwere ike iji dozie antenna maka nnabata ka mma.