Antenna log-periodic bụ antenna obosara nke ụkpụrụ ọrụ ya dabere na resonance na nhazi log-periodic. Isiokwu a ga-ewebatakwa gị na antenna log-periodic site na akụkụ atọ: akụkọ ihe mere eme, ụkpụrụ ọrụ na uru nke antenna log-periodic.

Akụkọ ihe mere eme nke antenna oge ochie

Antenna log-periodic bụ antenna obosara nke imewe ya dabere na nhazi log-periodic. Akụkọ ihe mere eme nke antenna log-periodic malitere na afọ 1950.

Ndị injinia Amerịka bụ́ Dwight Isbell na Raymond DuHamel mepụtara antenna log-periodic na mbụ n'afọ 1957. Mgbe ha na-eme nnyocha na Bell Labs, ha chepụtara antenna broadband nke nwere ike ikpuchi ọtụtụ eriri ugboro ugboro. Nhazi antenna a na-eji usoro geometry log-periodic, nke na-enye ya njirimara radieshon yiri ya n'ofe oke ugboro ugboro niile.

N'ime iri afọ ndị sochirinụ, ejirila ma mụọ antenna log-periodic mee ihe nke ukwuu. A na-eji ha eme ihe n'ebe dịka nkwukọrịta ikuku, nnata telivishọn na redio, sistemụ radar, nha redio, na nyocha sayensị. Njirimara obosara nke antenna log-periodic na-enye ha ohere ikpuchi ọtụtụ eriri ugboro ugboro, na-ebelata mkpa maka mgbanwe ugboro ugboro na nnọchi antenna, ma na-eme ka mgbanwe na arụmọrụ sistemụ dịkwuo mma.

Ụkpụrụ ọrụ nke antenna log-periodic dabere na nhazi pụrụ iche ya. Ọ nwere usoro efere ígwè na-agbanwe agbanwe, nke ọ bụla na-abawanye n'ogologo na oghere dịka oge logarithmic si dị. Nhazi a na-eme ka antenna ahụ mepụta ọdịiche nke usoro na ugboro dị iche iche, si otú a na-enweta radieshon wide-band.

Ka teknụzụ na-aga n'ihu, ụzọ nhazi na mmepụta nke antenna log-periodic emeziwanyela. Antenna log-periodic nke oge a na-eji ihe ndị dị elu na usoro mmepụta iji melite arụmọrụ na ntụkwasị obi antenna.

Enwere ike ịkọwa ụkpụrụ ọrụ ya n'ụzọ dị mkpirikpi dị ka ndị a

1. Ụkpụrụ Resonance: Nhazi nke antenna log-periodic dabere na ụkpụrụ resonance. N'otu ugboro kpọmkwem, nhazi nke antenna ga-emepụta eriri resonant, na-enye ohere ka antenna ahụ nata ma na-enwu ebili mmiri electromagnetic nke ọma. Site na imepụta ogologo na oghere nke mpempe ígwè ahụ nke ọma, antenna log-periodic nwere ike ịrụ ọrụ na ọtụtụ ugboro resonant.

2. Ọdịiche nke usoro: Oke log-periodic nke ogologo nke ígwè na oghere nke log-periodic antenna na-eme ka mpempe ígwè ọ bụla mepụta ọdịiche nke usoro na ugboro dị iche iche. Ọdịiche nke usoro a na-eduga na omume resonant nke antenna na ugboro dị iche iche, si otú a na-eme ka ọrụ obosara-band rụọ ọrụ. Mpekere ígwè dị mkpụmkpụ na-arụ ọrụ na ugboro dị elu, ebe iberibe ígwè ndị dị ogologo na-arụ ọrụ na ugboro dị ala.

3. Nnyocha ọkụ: Nhazi nke antenna log-periodic na-eme ka o nwee njirimara radieshon dị iche iche na ugboro dị iche iche. Ka ugboro ole na ole na-agbanwe, ntụziaka radieshon na obosara ọkụ nke antenna na-agbanwekwa. Nke a pụtara na antenna log-periodic nwere ike inyocha ma gbanwee ọkụ n'elu eriri ugboro ole na ole.

Uru nke antenna oge-oge

1. Àgwà Broadband: Antenna Log-periodic bụ antenna obosara nke nwere ike ikpuchi ọtụtụ eriri ugboro ugboro. Nhazi log-periodic ya na-eme ka antenna nwee àgwà radieshon yiri nke ahụ n'ofe oke ugboro ugboro niile, na-ewepụ mkpa ọ dị ịgbanwe ugboro ugboro ma ọ bụ dochie antenna, na-eme ka mgbanwe na arụmọrụ sistemụ dịkwuo mma.

2. Nnukwu uru na arụmọrụ radieshọn: Antenna ndị a na-eji oge log na-enwekarị uru na arụmọrụ radieshọn dị elu. Nhazi ya na-enye ohere maka resonance n'ọtụtụ ugboro ugboro, na-enye ike radieshọn na nnabata siri ike.

3. Njikwa nduzi: Antenna ndị a na-eji log-periodic eme ihe na-abụkarị ntụziaka, ya bụ, ha nwere ike radieshon ma ọ bụ nnabata siri ike n'akụkụ ụfọdụ. Nke a na-eme ka antenna ndị a na-eji log-periodic dabara adaba maka ngwa ndị chọrọ nduzi radieshon kpọmkwem, dị ka nkwukọrịta, radar, wdg.

4. Mee ka nhazi sistemụ dị mfe: Ebe ọ bụ na antenna log-periodic nwere ike ikpuchi oke ugboro ole dị iche iche, enwere ike ime ka nhazi sistemụ dị mfe ma belata ọnụọgụ antenna. Nke a na-enyere aka belata ọnụ ahịa sistemụ, belata mgbagwoju anya ma melite ntụkwasị obi.

5. Arụmọrụ mgbochi-nnyefe: Antenna oge-oge nwere ezigbo arụmọrụ mgbochi-nnyefe na nnukwu eriri ugboro. Nhazi ya na-enyere antenna aka ịchacha akara ugboro ugboro achọghị nke ọma ma melite iguzogide sistemụ ahụ megide nnyefe.

Na nkenke, site n'ịmepụta ogologo na oghere nke mpempe akwụkwọ ígwè nke ọma, antenna log-periodic nwere ike ịrụ ọrụ n'ọtụtụ ugboro resonant, yana njirimara obosara-band, arụmọrụ dị elu na radieshon, njikwa nduzi, nhazi sistemụ dị mfe na mgbochi-nnyonye anya. Uru arụmọrụ. Nke a na-eme ka antenna logarithmic periodic na-ejikarị eme ihe n'ọtụtụ ebe na nkwukọrịta ikuku, radar, nyocha sayensị na mpaghara ndị ọzọ.