Nā Huli Nalu RF Microwave Millimeter Wave Radio

Nā Huli Nalu RF Microwave Millimeter Wave Radio

Nā hiʻohiʻona:

VSWR haʻahaʻa

Nā noi:

Uolea
Mea lawe lawe
Ho'āʻo Laboratory
Hoolaha

E HOAKAKA ANO

Huli Waveguide

ʻO ka hawewe nalu RF, ka huaʻōlelo maʻamau e uhi i nā ʻano ʻano like ʻole o nā alakaʻi nalu metala a me nā nalu nalu. Ma waena o lākou, ua kapa ʻia ka mea mua he alakaʻi nalu i pani ʻia no ka mea ua paʻa loa ka hawewe electromagnetic i hoʻouna ʻia i loko o ka paipu metala. Ua kapa ʻia ka hawewe hāleʻa hāmama no ka mea, ʻo ka nalu electromagnetic e alakaʻi ai, ua paʻa ia i ka ʻāpana o ke ʻano alakaʻi nalu. He kuleana koʻikoʻi kēlā mau alakaʻi hawewe lekiō i nā umu microwave, nā radar, nā satelite kamaʻilio, a me nā mea hoʻopili lekiō microwave, kahi e hoʻopili ai i nā mea hoʻouna microwave a me nā mea hoʻokipa i kā lākou mau antenna. Ua kapa ʻia ka wili nalu nalu. Hoʻololi ia i ka ʻaoʻao o ka polarization ma ka hoʻohuli ʻana i ka ʻaoʻao o nā ʻaoʻao ākea a haiki ma nā ʻaoʻao ʻelua, i hele ai ka hawewe electromagnetic ma ia, hoʻololi ke kuhikuhi o ka polarization, akā ʻaʻole i hoʻololi ʻia ke kuhikuhi o ka hoʻolaha.
I ka hoʻohui ʻana i nā alakaʻi nalu millimeter, inā ʻokoʻa nā ʻaoʻao ākea a haiki o nā alakaʻi nalu ʻelua, pono e hoʻokomo i kēia alakaʻi nalu wili ma ke ʻano he hoʻololi. ʻO ka lōʻihi o ka wili alakaʻi nalu he mau helu helu o λ g/2, a ʻo ka lōʻihi pōkole ʻaʻole e emi iho ma mua o 2 λ g (kahi ʻo λ g ka lōʻihi nalu o ka nalu).

Noi:

He nui nā noi ʻana o ka Waveguide twists, ma muli o kā lākou mau hiʻohiʻona hana kiʻekiʻe, e like me ke kiʻekiʻe o ka hoʻouna ʻana a me ka haʻahaʻa haʻahaʻa haʻahaʻa, kahi e hana nui ai lākou i ka pūʻali koa, aerospace, satellite communications, radar system, millimeter wave imaging a me nā ʻoihana hoʻomehana / kuke ʻana.

Kaʻaleʻalehoʻolako i nā wili nalu e uhi i ke alapine a hiki i ka 110GHz, a me nā Waveguide Twists i hana ʻia e like me nā koi o nā mea kūʻai aku. Inā makemake ʻoe e nīnau e pili ana i ka ʻike huahana hou aku, hiki iā ʻoe ke hoʻouna mai iā mākou i leka uila a hauʻoli mākou e lawelawe iā ʻoe.

Helu Mahele	RF Frequency (GHz, min.)	RF Frequency (GHz, Max.)	Nalo hookomo (dB, Max.)	VSWR (Max.)	Nui alakai nalu	Flange	Ka manawa o waena o ka hoʻomaka a i ka wā pau (Nā pule)
QTW-10	73.8	110	-	1.15	WR-10 (BJ900)	UG387/UM	2~4
QTW-15	50	75	-	1.15	WR-15 (BJ620)	UG385/U	2~4
QTW-62	11.9	18	0.1	1.2	WR-62 (BJ140)	FBP140	2~4
QTW-D750	7.5	18	-	1.25	WRD-750	FPWRD750	2~4