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Nā Kumu o ka Fading a me nā ʻAno o ka Fading i ke kamaʻilio uea ʻole
Hōʻike kēia ʻaoʻao i nā kumu kumu o ka Fading a me nā ʻano o ka fading i ke kamaʻilio uea ʻole. Ua māhele ʻia nā ʻano Fading i ka fading nui a me ka fading liʻiliʻi (multipath delay spread a me ka doppler spread). ʻO ka fading pālahalaha a me ka fading koho alapine he ʻāpana ia o ka multipath fadi...E heluhelu hou aku -
Ka ʻokoʻa ma waena o AESA Radar a me PESA Radar | AESA Radar Vs PESA Radar
Hoʻohālikelike kēia ʻaoʻao i ka radar AESA vs radar PESA a haʻi i ka ʻokoʻa ma waena o ka radar AESA a me ka radar PESA. Kū ʻo AESA no Active Electronically Scanned Array ʻoiai kū ʻo PESA no Passive Electronically Scanned Array. ● PESA Radar Hoʻohana ka radar PESA i nā mea maʻamau...E heluhelu hou aku -
Ka Hoʻohana ʻana o ka Antenna
He ʻano like ʻole nā noi o nā antennas ma nā ʻano like ʻole, e hoʻololi ana i ke kamaʻilio ʻana, ka ʻenehana, a me ka noiʻi. He mea nui kēia mau mea hana i ka hoʻouna ʻana a me ka loaʻa ʻana o nā nalu electromagnetic, e hiki ai i nā hana he nui. E ʻimi kākou i kekahi mau noi koʻikoʻi o kahi...E heluhelu hou aku -
Kumumanaʻo Koho o ka Nui o ka Waveguide
ʻO ke alakaʻi nalu (a i ʻole ke alakaʻi nalu) he laina hoʻoili tubular hakahaka i hana ʻia me kahi alakaʻi maikaʻi. He mea hana ia no ka hoʻolaha ʻana i ka ikehu electromagnetic (ʻo ia hoʻi ka hoʻouna ʻana i nā nalu electromagnetic me nā nalu ma ke ʻano o nā kenimika) Nā mea hana maʻamau (ʻo ia hoʻi ka hoʻouna ʻana i nā uila...E heluhelu hou aku -
ʻAno Hana Antenna Pepeiao Polarized Pālua
Hiki i ka antenna pepeiaohao pālua-polarized ke hoʻouna a loaʻa i nā nalu electromagnetic polarized horizontally a me vertically polarized ʻoiai e mālama ana i ke kūlana kūlana i hoʻololi ʻole ʻia, i hiki ai i ka hewa ʻokoʻa kūlana ʻōnaehana i hoʻokumu ʻia e ka hoʻololi ʻana i ke kūlana antenna i mea e hālāwai ai ...E heluhelu hou aku
