I-Cryogenic Low Noise Amplifiers RF Microwave Millimeter Wave mm wave

I-Cryogenic Low Noise Amplifiers RF Microwave Millimeter Wave mm wave

Izici:

Usayizi Omncane
Ukusetshenziswa Kwegesi Okuphansi
Ibhendi Ebanzi
Low Noise Temperature

Izicelo:

Okungenantambo
I-Transmitter
Ukuhlolwa Kwelabhorathri
I-Quantum Computing

XHUMANA MANJE

I-Cryogenic Low Noise Amplifiers

Ama-Cryogenic Low Noise Amplifiers (LNAs) angamadivayisi kagesi akhethekile aklanyelwe ukukhulisa amasiginali abuthakathaka anomsindo omncane owengeziwe, kuyilapho esebenza emazingeni okushisa aphansi kakhulu (ngokuvamile amazinga okushisa e-helium ewuketshezi, angu-4K noma ngaphansi). Lezi zikhulisi zibalulekile ezinhlelweni zokusebenza lapho ubuqotho besignali nokuzwela kubaluleke kakhulu, njenge-quantumcomputing, i-radio astronomy, ne-superconducting electronics. Ngokusebenza emazingeni okushisa e-cryogenic, ama-LNA athola izibalo zomsindo eziphansi kakhulu uma kuqhathaniswa nozakwabo bezinga lokushisa legumbi, okubenza babaluleke kakhulu ezinhlelweni zesayensi nezobuchwepheshe ezinembayo.

Izici:

1. Umfanekiso Womsindo Ophansi Kakhulu: I-Rf cryogenic LNAs ifinyelela izibalo zomsindo eziphansi njengezingxenye eziyishumi ezimbalwa ze-decibel (dB), ezingcono kakhulu kunezikhulisamsindo zegumbi. Lokhu kungenxa yokuncipha komsindo oshisayo emazingeni okushisa e-cryogenic.
2. Ukuzuza Okuphezulu: Ihlinzeka ngokukhulisa isignali ephezulu (imvamisa engu-20-40 dB noma ngaphezulu) ukuze kukhuliswe amasiginali abuthaka ngaphandle kokululaza isilinganiso se-signal-to-noise (SNR).
3. Ububanzi Obubanzi: Isekela ububanzi obubanzi befrikhwensi, ukusuka ku-MHz embalwa ukuya kuma-GHz amaningana, kuye ngedizayini nokusebenza.
4. Ukuvumelana kwe-Cryogenic: Izikhulisamandla zomsindo we-Microwave cryogenic low eziklanyelwe ukusebenza ngokuthembekile emazingeni okushisa e-cryogenic (isb, 4K, 1K, noma ngisho nangaphansi). Yakhiwe kusetshenziswa izinto zokwakha kanye nezingxenye ezigcina izakhiwo zazo zikagesi nezomshini emazingeni okushisa aphansi.
5. Ukusetshenziswa Kwamandla Okuphansi: Kwenzelwe ukuchithwa kwamandla amancane ukuze kugwenywe ukushisisa indawo ye-cryogenic, engase yenze uhlelo lokupholisa lungasebenzi kahle.
6. Idizayini Eqinile Nengasindi: Iklanyelwe ukuhlanganiswa ezinhlelweni ze-cryogenic, lapho isikhala nesisindo kuvame ukukhawulelwa.
7. I-Linearity Ephezulu: Igcina ubuqotho besignali ngisho nakumazinga aphezulu okufaka amandla, iqinisekisa ukukhulisa ngokunembile ngaphandle kokuhlanekezela.

Izicelo:

1. I-Quantum Computing: I-Millimeter wave cryogenic low noise amplifiers esetshenziswa ku-superconducting quantum processors ukuze kukhuliswe amasiginali afundekayo abuthakathaka kusuka kuma-qubits, okuvumela ukulinganiswa okunembile kwezimo ze-quantum. Kuhlanganiswe eziqandisini ze-dilution ukuze zisebenze emazingeni okushisa e-millikelvin.
2. I-Radio Astronomy: Iqashwe kuma-cryogenic receivers of radio telescopes ukukhulisa amasignali afiphele avela ezintweni ezikude zasemkhathini, ukuthuthukisa ukuzwela nokuxazulula kokubhekwa kwezinkanyezi.
3. I-Superconducting Electronics: ama-mm wave cryogenic low noise amplifiers asetshenziswa kumasekethe e-superconducting nezinzwa ukuze akhulise amasignali abuthakathaka kuyilapho kugcinwa amazinga aphansi omsindo, eqinisekisa ukucutshungulwa kwesignali okunembile nokulinganisa.
4. Ukuhlolwa Kwezinga Lokushisa Eliphansi: Kusetshenziswa ekusetheni ucwaningo lwe-cryogenic, olufana nocwaningo lwe-superconductivity, i-quantum phenomena, noma ukutholwa kwezinto ezimnyama, ukukhulisa amasignali abuthakathaka ngomsindo omncane.
5. Ukufanekisa Kwezokwelapha: Kusetshenziswa ezinhlelweni zokuthwebula ezithuthukisiwe njenge-MRI (I-Magnetic Resonance Imaging) esebenza emazingeni okushisa e-cryogenic ukuze kuthuthukiswe ikhwalithi yesignali nokuxazulula.
6. Ukuxhumana Kwendawo Nesathelayithi: Kusetshenziswa ezinhlelweni zokupholisa i-cryogenic zamathuluzi asekelwe emkhathini ukukhulisa amasignali abuthakathaka avela endaweni ejulile, ukuthuthukisa ukusebenza kahle kokuxhumana kanye nekhwalithi yedatha.
7. I-Particle Physics: Iqashwe kuzitholi ze-cryogenic zokuhlola ezifana nokutholwa kwe-neutrino noma ukusesha izinto ezimnyama, lapho ukukhuliswa komsindo ophansi kubaluleke kakhulu.

Qualwaveihlinzeka nge-Cryogenic Low Noise Amplifiers kusukela ku-DC kuya ku-8GHz, futhi izinga lokushisa lomsindo lingaba ngaphansi kuka-10K.