ʻO Cassegrain Antenna 26.5-40GHz ka laulā, loaʻa iā 40dBi Typ.RM-CGA28-40

He antenna reflector pālua kūpono loa ka antenna Cassegrain, nona ka inoa a me ka hoʻolālā i loaʻa mai ka telescope Cassegrain. Loaʻa iā ia kahi reflector mua (he paraboloid) a me kahi reflector lua (he hyperboloid), i kau ʻia ma luna o ke kiko kikowaena o ka reflector mua.

ʻO ke kumu hana penei: hoʻopuka mua ka pepeiaohao hānai i nā nalu electromagnetic i ka reflector lua, a laila e hōʻike ana i nā nalu ma luna o ka reflector mua. Hoʻohui ka reflector mua i kēia mau nalu i loko o kahi kukuna like, kuhikuhi kiʻekiʻe no ka hoʻoili ʻana. ʻO kēia ala optical "pelu" e ʻae i ka hānai e kau ʻia ma hope o ka reflector mua, e hōʻemi nui ana i ka nalowale o ka feedline a hoʻomaʻalahi i ka mālama ʻana.

ʻO nā pono nui o kēia antenna ʻo ia kona loaʻa kiʻekiʻe, nā lobes ʻaoʻao haʻahaʻa, ke ʻano paʻa (hoʻohālikelike ʻia me kahi parabola lōʻihi-focal-lōʻihi), a me ke kau ʻana o ka hānai a me nā mea loaʻa ma hope o ka reflector mua, kahi e hōʻemi ai i ka nalowale o ka hoʻoili ʻana. ʻO kona hemahema nui ka pale ʻana o kahi ʻāpana o ke kukuna nui e ka reflector lua a me kāna ʻano kākoʻo. Hoʻohana nui ʻia ia i nā kamaʻilio ukali, ka astronomy radio, a me nā ʻōnaehana radar lōʻihi.