Amamwa HF wolandila kwa magulu a zofufuzafufuza: chiwembu

Amamwa HF amalandira (mafunde lalifupi) amapangidwa pa maziko a masiwichi kukana. zosintha zambiri monga basi anatumizanso lamya adaputala ndipo akukonzani ndi amplifiers. Standard stabilizer dera ali pafupipafupi apamwamba. Kusintha faders njira ziyangoyango ntchito.

Iwo ayenera kukumbukira kuti amalandira ndi osiyana ndi wina ndi mnzake mu madutsidwe ndi pafupipafupi tetrode. Kuti yabwino kuthana ndi nkhani imeneyi, tiyenera kuganizira chiwembu cha amalandira otchuka.

zipangizo Low pafupipafupi

Chiwembu improvised HF wolandila otsika pafupipafupi chikuphatikizapo modulator controllable, ndi ya capacitors. Resistors amasankhidwa chifukwa chipangizo 4 PF. zitsanzo zambiri ndi transistors kukhudzana, amene ntchito ku transducers lapansi. Iwo ayenera kukumbukira kuti wolandila dera limapangidwa yekha transceivers mtengo.

Pakuti njira zoikamo ntchito amazilamulira kuti amene anaika pa chiyambi cha unyolo. Ena zitsanzo anapangidwa ndi adaputala chimodzi chokha, ndipo pulagi iwo mu mzere mtundu anasankha. Ngati tikambirana chitsanzo yosavuta, iwo anagwiritsa ntchito mphamvu gululi. Mozama pa pafupipafupi 400 MHz. Insulators amene anaika kwa modulators.

Chubu mkulu pafupipafupi chitsanzo

Amamwa chubu mkulu pafupipafupi HF amalandira monga masensa kukhudzana ndi transmitters ndi madutsidwe otsika. Akatswiri ena kulankhula zabwino zokhudza zipangizo izi. Choyamba, iwo kuona luso kulumikiza transceivers. Akapsa pansi abwino kusinthidwa mtundu ITR. Nthawi zambiri pali zipangizo ndi resistors michenga yopangira zida zamagetsi.

Ngati tikambirana chiwembu muyezo wa comparator ali ndi mtundu chosinthika. Resistors amene anaika pa kubwereketsa ndi mphamvu ya osachepera 3.4 PF. The madutsidwe si adatchithisira pansipa 5 microns. The yang'anira yakwera njira zitatu kapena zinayi. Mu amalandira kwambiri, chimodzi chokha gawo fyuluta.

kusinthidwa zimachitika

Kugunda amamwa HF wolandila kwa magulu a zofufuzafufuza angathe zikugwira ntchito pa pafupipafupi 300 MHz. zitsanzo zambiri akuwonjezeka zipsepse pini. Nthawi zina, ntchito transceivers. Zina za resistors zimadalira madutsidwe lapansi. Capacitance pa linanena bungwe ndi wofanana 3 PF.

Madutsidwe contactors pafupifupi 6 microns. amalandira ambiri amapangidwa ndi adaputala azamagetsi ndi dipole, amene ali oyenera zolumikizira PP. Nthawi zambiri pali condenser mayunitsi, amene ntchito pa thyristors lapansi. Ngati tikambirana chitsanzo cha nyale, nkofunika kuona kuti ntchito unijunction comparators. Kuphatikizapo basi pafupipafupi 300 MHz. Komanso, ine ndiyenera kuti pali zitsanzo ndi transistor.

Zipangizo osakwatira-mzati

N'zosavuta kukhazikitsa kudzikonda anapanga, limodzi-chubu HF amalandira. manja wake chitsanzo ndi comparators variable. Ambiri mwa zosintha ndi cholinga ndi stabilizers otsika madutsidwe. Standard wolandila dera zimaphatikizapo kugwiritsa ntchito resistors dipole amene linanena bungwe capacitance liri 4.5 PF. The madutsidwe kungakhale 50 microns.

Ngati inu paokha kusonkhanitsa kusinthidwa, ndi comparator muyenera kukolola ndi transceiver lapansi. resistors ndi soldered kuti modulator lapansi. zinthu kukana, monga ulamuliro, si upambana 45 ohms, koma pali kuchotserapo. Ngati ife kulankhula za amalandira pa kulandirana, iwo ndi transistors chosinthika ntchito. Ntchito zinthu kafukufuku modulator, ndipo amasiyana tilinazo.

Kumanga Mipikisano mzati amalandira

Kodi ubwino wochita Mipikisano mzati chowunikira HF wolandila pa magulu kusangalala? Ngati ndemanga akatswiri amakhulupirira zipangizo izi pafupipafupi mkulu chotero zimawononga magetsi pang'ono. zosintha kwambiri muti dipole contactors ndi adaputala azamagetsi ntchito waya mtundu. zolumikizira ali oyenera magulu osiyanasiyana.

Ena zitsanzo zili Zosefera gawo kuti kuchepetsa chiopsezo cha kulephera kwa yoweyula kusokonezedwa. Tiyeneranso kudziŵika kuti mulingo ulamuliro chiwembu zimaphatikizapo kugwiritsa ntchito Mtsogoleri kusintha pafupipafupi. Comparators nthawi zina pali njira mtundu. Pamene transistor izi ntchito ndi isolator chimodzi chokha, ndipo madutsidwe si poyerekeza microns 45. Ngati tikambirana amalandira zochulukitsira, amatha kugwira ntchito kokha pa mafurikwense otsika.

Chitsanzo ndi dvuhperehodnym Converter

HF amalandira kwa magulu a zofufuzafufuza ndi converters dvuhperehodnymi angathe stably kukhalabe pafupipafupi pa 400 MHz. zitsanzo zambiri ntchito zener mtengo. Iye amagwira ntchito ku transducer ndipo ali ndi madutsidwe mkulu. Standard zosintha dera chikuphatikizapo Mtsogoleri kwa zotuluka atatu ndi capacitor. The mkuzamawu ndi oyenera zitsanzo ndi varicap.

Iwo ayenera kukumbukira kuti mkulu-pafupipafupi inverter chipangizo cha mtundu akhoza bwino kupirira mopupuluma phokoso la wagawo ndi. Comparators ntchito ndi gululi ndi capacitive resistors. Chizindikiro kukana pa athandizira dera ndi wofanana 45 ohms. Pankhaniyi, wolandirayo tilinazo zikhoza kukhala zosiyana kwambiri.

atatu waya zipangizo Converter

Amamwa HF wolandila kwa magulu a zofufuzafufuza ndi Converter atatu waya ali contactor umodzi. Zolumikizira ntchito mbale popanda izo. Iwo ayenera kukumbukira kuti resistors ntchito madutsidwe osiyana. Kumayambiriro kwa unyolo pali chinthu 3 microns. Aliyense likukhudza unipolar mtundu napereka ziliri pa njira imodzi yokha. condenser ili kuseri kwa icho ndi liniya kondakitala.

Iwo ayenera kukumbukira kuti resistor pa linanena bungwe la dera ali otsika madutsidwe. Mu amalandira ambiri ntchito variable mtundu ndipo titha kuchita panopa malangizo onse. Ngati tikambirana kusinthidwa pa 340 MHz, ndiye iwo akhoza kukumana ndi triodes comparators gululi. Iwo ntchito ndi kukana kuchuluka, ndi voteji ndi mochuluka momwe 24 V.

Zosintha 200 MHz

Amamwa HF wolandila kwa magulu a zofufuzafufuza ndi pafupipafupi 200 MHz sizachilendo. Choyamba tisaiwale kuti zitsanzo sangathe kugwira ntchito comparators lapansi. zosintha liniya amayambira. Komabe, zipangizo ambiri amaona kuti kukhala chitsanzo kusintha decoders. Iwo anaika ndi ya adaputala azamagetsi. Resistors pa chiyambi cha unyolo wa mphamvu mkulu ntchito, ndi kukana ali osachepera wofanana 55 ohms.

Amplifiers kukumana ndi zosefera ndi wopanda iwo. Ngati tikulingalira kusinthidwa oyimba, ndiye iwo duplex capacitors ntchito. Pankhaniyi, stabilizer ntchito ndi yang'anira lapansi. Kusintha njira modulator chofunika. Ena amalandira ntchito ndi amalandira. Ali ndi mndandanda wa PP cholumikizira.

Zipangizo 300 MHz

Amamwa HF wolandila kwa magulu a zofufuzafufuza ndi pafupipafupi 300 MHz zikuphatikizapo mitundu iwiri iwiri ya resistors. Comparators kwa zitsanzo kukumana ndi madutsidwe wa microns 40. Ena zosintha monga zochulukitsira basi anatumizanso lamya. Zinthu zimene mungathe kwambiri offloads ndi capacitors.

Ngati inu mukukhulupirira maganizo a akatswiri, zitsanzo za mtundu uwu amadziŵika hypersensitivity. Amamwa chipangizo wosapangidwa Tetrodes. Kusintha chizindikiro conduction ntchito transistors yekha. Iwo ayenera kukumbukira kuti pali zipangizo ndi zosefera njira.

Zosintha 400 MHz

Galimoto chipangizo pa MHz 400 adzatenge ntchito dipole adaputala ndi zopezera resistors. Transceiver, lachitsanzo ntchito kutsegula sefa. Kusonkhana chipangizo ndi manja anu, makamaka kukolola tetrode. Capacitors pansi podirayutsya madutsidwe otsika ndi tilinazo 5 MV. Iwo ayenera kukumbukira kuti zipangizo wamba amaona otsika-pafupipafupi amalandira monga tiransifoma. Komanso kuti kusonkhanitsa chipangizo ndi manja anu, kutenga modulator wina. Wokwera kutsogolo kwa transducer mchitidwe yogwira.

Chubu zipangizo otsika tilinazo

Chubu HF wolandila kwa magulu a zofufuzafufuza chisoni akhoza kugwira ntchito njira zosiyanasiyana. Muyezo chithunzi cha chipangizo zimaphatikizapo kugwiritsa ntchito stabilizer ndi. Pamene adaputala iyi ntchito lotseguka. The madutsidwe wa resistor ayenera kukhala osachepera 55 microns. M'pofunikanso kukumbukira kuti amalandira anapangidwa ndi mbale. Kusonkhana chipangizo ndi manja anu, ogwidwawo ya capacitors. Mphamvu iwo ayenera kukhala osachepera 45 PF. Payokha, ndikofunika kudziwa kuti amalandira wa mtundu uwu amadziŵika ndi kukhalapo kwa adaputala azamagetsi duplex.

mkulu tilinazo amalandira

mkulu tilinazo chipangizo ukugwira ntchito pa pafupipafupi 300 MHz. Ngati tikambirana chitsanzo yosavuta, izo Akusonkhanitsa pa maziko a comparator ndi madutsidwe wa 4 microns. Pankhaniyi, Zosefera ndi kuloledwa ntchito mu mbale chachiwiri.

Transistors unijunction wolandirayo akonzedwa mtundu ndi Zosefera ntchito 4 PF. Kaŵirikaŵiri basi anatumizanso lamya transceivers. Ali madutsidwe wabwino ndipo popanda mphamvu zambiri.

The modulator akhoza kugwiritsidwa ntchito ndi varicap wina. Choncho, chitsanzo akhoza kugwira ntchito njira zosiyanasiyana. Kuthetsa mavuto ndi kukana zoipa ntchito yowonjezera capacitor.