• Bakeng sa ho arola letšoao ka lipontšo tse peli tsa amplitude e lekanang le phapang ea 90 ° kapa 180 ° kamehla.
• Bakeng sa ho kopanya quadrature kapa ho etsa kakaretso/ho kopanya ho fapana.
Selelekela
Li-Couplers le li-hybrids ke lisebelisoa tseo ho tsona likhoele tse peli tsa phetiso li fetang haufi ka ho lekana bakeng sa matla a ho ata moleng o le mong ho ea ho o mong. Lebasetere la 3dB 90 ° kapa 180 ° le arola lets'oao le kenang ka likarolo tse peli tse lekanang tsa amplitude. Hangata coupler ea tataiso e arola lets'oao la ho kenya liphetho tse peli tse sa lekanang tsa amplitude. Mareo ana a reng “directional coupler”, “90° hybrid”, le “180° hybrid” a theilwe hodima kopano. Leha ho le joalo, mefuta e nyalisitsoeng ea 90° le 180° e ka nkoa e le 3 dB directional couplers. Leha ho na le ho tšoana hona, li-parameter tse sebelisetsoang ho hlalosa phallo ea lets'oao ho li-couplers tse lebang le ts'ebeliso, ts'ebelisong ea 'nete, li fapane ka ho lekaneng ho fana ka maikutlo a fapaneng.
180 ° Hybrids Tlhaloso ea Mosebetsi
Lebasetere la 180 ° ke sesebelisoa sa li-port tse 'ne se lumellanang se fanang ka matšoao a mabeli a lekanang a amplitude ka mohato ha o fepeloa ho tloha koung ea eona ea kakaretso (S) le matšoao a mabeli a lekanang a 180 ° ha a fepeloa ho tloha boema-kepe ba ona (D). Ka lehlakoreng le leng, lipontšo tse kenang likoung tsa C le D li tla eketsa boema-kepeng ba kakaretso (B) mme phapang ea matšoao a mabeli e tla hlaha boema-kepeng ba phapang (A). Setšoantšo sa 1 ke setšoantšo se sebetsang se tla sebelisoa sehloohong sena ho emela motsoako oa 180 °. Port B e ka nkuoa e le boema-kepe ba kakaretso mme boema-kepe ba A ke boema-kepe bo fapaneng. Boemakepe ba A le B le boemakepe ba C le D ke lipara tse arohaneng tsa likou.
90 ° Hybrid kapa li-couplers tse nyalisitsoeng ha e le hantle ke li-couplers tse 3 dB moo karolo ea lets'oao le kopaneng le lets'oao le tsoang li arohaneng ka 90 °. Kaha -3 dB e emela halofo ea matla, 3 dB coupler e arola matla ka ho lekana (ka har'a mamello e itseng) pakeng tsa lihlahisoa le likou tse kopantsoeng. Phapang ea karolo ea 90 ° lipakeng tsa liphetho e etsa hore mefuta e nyalisitsoeng e be le thuso moralong oa li-attenuators tse feto-fetohang tsa elektroniki, li-mixer tsa microwave, li-modulator le lisebelisoa tse ling tse ngata tsa microwave. Setšoantšo sa 5 se bontša setšoantšo sa potoloho le tafole ea 'nete e tla sebelisoa ho hlalosa ts'ebetso ea lebasetere la RF frequency 90°. Joalokaha ho ka bonoa setšoantšong sena, letšoao le sebelisoang ho kenya letsoho leha e le lefe le tla etsa hore ho be le lipontšo tse peli tse lekanang tsa amplitude tse quadrature, kapa 90 °, ntle le mohato. Likou tsa A le tsa B le tsa C le tsa D li arotsoe. Joalokaha ho boletsoe pejana karolong e nyalisitsoeng ea 180°, lisebelisoa tsa RF le microwave frequency li sebelisa mekhoa e fapaneng ea kaho. Le hoja likarabo tsa khopolo-taba li tšoana, sebaka sa boema-kepe le kopano li fapane. Ka tlase, ho Setšoantšo ho na le liphetolelo tsa "cross-over" le "non-crossover" tse fanoang bakeng sa maqhubu a microwave (500 MHz le holimo) le tafole ea 'nete e hlahisoang. Li-hybrids tsa degree tse mashome a robong li boetse li bitsoa quadrature hybrids hobane karolo ea liphetho tse peli li arohane ka quadrant (90°). Hape hlokomela hore ha e etse phapang ea hore na ke boema-kepe bofe bo kenang ha feela kamano pakeng tsa likou e ntse e le teng. Lebaka ke hobane li-hybrids tsa 90° li lumellana ka motlakase le ka mochini mabapi le li-axes tsa X le Y.
Si Chuan Keenlion Microwave khetho e kholo ea borokho bo nyalisitsoeng ba 3DB ka har'a litlhophiso tse moqotetsane le li-broadband, tse koahelang maqhubu ho tloha ho 0.5 ho isa ho 50 GHz. Li etselitsoe ho sebetsana le matla a ho kenya a 10 ho isa ho a 30 ka har'a sistimi ea phetisetso ea 50-ohm. Meralo ea Microstrip kapa stripline e sebelisoa, 'me e ntlafalitsoe bakeng sa ts'ebetso e ntle ka ho fetisisa.
Liyuniti li tla ka mokhoa o tloaelehileng ka lihokelo tsa SMA kapa N tsa basali, kapa 2.92mm, 2.40mm, le 1.85mm likhokahanyo bakeng sa likarolo tse phahameng tsa maqhubu.
Re ka boela ra etsa 3DB Hybrid Bridge ho latela litlhoko tsa hau. U ka kenya leqephe la ho itlhophisa ho fana ka lintlha tseo u li hlokang.
Nako ea poso: Oct-09-2022
