RF cables ni gaw, high-frequency signal shapoi na matu ahkyak ai ladat langai hku nna, matut mahkai lam, nbungli lam, ndau shabra ai lam, chyam dinglik ai lam ni hta n mai galai shai ai lit nga ai. Shanhte a hpaji masa gaw signal a hkam kaja lam, system hpe kam hpa mai ai lam, engineering application ni hta hkan nna htuk manu ai lam ni hpe hkrak hkrak hkra machyi shangun ai. Ndai laika hta RF cable ni a madung hpaji masa ni hpe wan n-gun atsam, jak rung atsam, grup yin hpe htuk manu hkra galaw lu ai atsam, hte shinggyim masha ni lang ai masa ni a ningmu ni hku nna hkrang shapraw nna sang lang dan da ai.
I. Kaja dik ai wan n-gun atsam: sum ai lam n law ai hte ngang grin ai lam grai law ai
RF cable ni a madung hpaji masa gaw, shanhte a signal hpe frequency kaba ni hta shalai ya lu ai atsam rai nga ai. Low loss gaw shanhte a madung akyu langai mi rai nga ai. Dai zawn re ai n-gun rawng ai arung arai ni hpe (oxygen-n lawm ai magri shing nrai gumhpraw -hpyen ai magri zawn re ai), n-gun rawng ai (polytetrafluoroethylene (PTFE) shing nrai, ngang kang ai polyethylene zawn re ai), makawp maga ai hkrang hpe grau kaja hkra galaw ai hku nna, n-gun ja ai G{4}Hz kaw nna M1 de n-gun ja ai signal ni hpe shayawm lu ai. grai npu madang de du wa ai. Ga shadawn, 18 GHz band hta 0.5 dB/meter daram sha sum mat ai hpe lu la mai ai.
Characteristic impedance matching gaw kaga ahkyak ai masa langai rai nna, 50Ω (n-gun shapoi ai hte chyam dinglik ai ladat ni hta lang ai) hte 75Ω (n-gun shapoi ai hte television hta lang ai) ni lawm ai madang manu ni lawm ai. Tight impedance hkam sharang ai lam (ga shadawn, ±1%) gaw signal n-gun hpe atsawm sha pat shingdang ya nna, n-gun hpe atsawm sha htawt sit ya lu ai. Dai hta n-ga, makawp maga ai atsam hpe law law-layer braided mesh (tinned copper (sh) gumhpraw n-gang zawn re ai) shing nrai aluminum foil hte galaw da ai n-gang ni hku nna lu la mai ai, makawp maga ai lam a n-gun hpe -90dB jan nna, electromagnetic n-gun shayawm ai lam (ERFMIakage) hpe atsawm sha pat shingdang lu ai.
II. Hpaji hte seng ai hkrak ai lam: Galai shai ai lam hte ngang grin ai lam hpe rap ra hkra galaw ai
RF cable ni a jak rung hkrang shapraw ai lam gaw, signal shapoi ra ai lam ni hpe, teng sha jung da ai masa ni hte rap ra hkra galaw ra ai. Hkrang n-gun rawng ai lam ni hpe madung tawn nna, shanhte hpe semi-rigid cables (hkum hkrang n-gun rawng ai magri mang n-gang shinggan conductor hpe lang nna, n-gun rawng ai geometry hpe n-gun rawng hkra galaw ai), semi-flexible cables (hpyen n-gun rawng ai shinggan conductor hpe jai lang nna, n-gun rawng ai magri wire law law hpe hkang lu na matu), hkala nba hpe chyahkring hkring shamu shamawt na matu htuk manu ai).
Insulation medium hpe lata ai gaw, cable a hkum hkrang atsam hpe hkrak hkra machyi shangun ai. Ga shadawn, PTFE gaw grai n-gun n law ai dielectric constant (2.1 daram) hte n-gun n-gun n-gun (-55℃kaw nna +260℃) hpe n-gun n-gun n-rawng ai shara ni hta jai lang na matu htuk manu ai. Maga mi de, jat wa ai polyethylene gaw, n-gun n law ai sha, dielectric density hpe shayawm kau ai hku nna, signal hpe shayawm ya ai. Shinggan na n-gup magap arung arai ni (polyvinyl chloride (PVC), polyurethane (TPU), shing nrai fluoropolymers zawn re ai ni) gaw, n-gup magap, sau, shing nrai, nbung laru a majaw, grau nna makawp maga ya lu ai.
III. Hkringmang daju a makau grup yin hte htuk manu hkra galaw ai hkrang shapraw ai lam
Hpaga lam hte hpyen masa-grade RF cable ni gaw, yak hkak ai grup yin mayak mahkak ni hpe hkam sharang ra ai. Katsi ai hpe ngang grin hkra galaw lu na matu, katsi ai hpe hkam sharang lu ai arung arai ni (FEP (sh) ceramic-hpring ai PTFE zawn re ai ni) hpe lata la ai hku nna lu la mai ai. Nkau mi gaw -70℃kaw nna +400℃du hkra bungli galaw ai lam hpe n-gun jaw lu ai. Hka hte n-gun n-gun hpe ninghkap lu ai atsam gaw, hka n-gun n shang hkra, n-gun n-gun hpe pat shingdang na matu, shingnip a shingnip shingna (welded aluminum foil + hot-melt adhesive zawn re ai) shing nrai, laksan shingnip shingna (polyimide zawn re ai) ni hpe kam hpa nga ai.
Mechanical stress hpe makawp maga na matu, armored cables ni gaw n-gun n rawng ai n-gang braid (sh) spiral steel tape hpe jat bang nna, n-gun rawng ai hte n-gun rawng ai n-gun hpe jat ya ai majaw, ga kata kaw jung na matu (sh)-mawdaw hta hkawm sa na matu htuk manu ai. Dai hta n-ga, n-gun n law ai-wan n-gun n rawng ai-halogen (LSZH) sheathing arung arai ni gaw wanleng lam hte panglai lam hta jai lang ai lam ni hta wan hkru ai lam hpe makawp maga na matu ra kadawn ai lam ni hpe hkan sa lu ai.
IV. Laksan jai lang ai lam ni hte lata la ai lam a madung lam ni
RF cable ni a hpaji masa gaw shanhte a yaw shada ai jai lang ai lam ni hpe dawdan ya ai:
Matut mahkai lam a npawt nhpang shara ni hte radar masa ni: Millimeter-wave signal ni hpe ngang grin ai hku htawt sit lu na matu, sum ai lam n law ai hte n-gun kaba ai (LMR series zawn re ai) semi-rigid cable ni hpe ra sharawng ai.
Laboratory hte chyam dinglik ai lam hte shadawn ai lam: Hpa majaw nga yang, shanhte a ngang grin ai phase mahtai a majaw, vector network analyzers (VNAs) zawn re ai arung arai ni hpe shadawn shadang galaw na matu, n-gun ja ai -htuk manu ai n-gun rawng ai cable ni (RG-316 zawn re ai) hpe lang ma ai.
Satellite hte nbungli: Ultra-n-gun n law ai cable ni (micro-coaxial structures zawn re ai ni) hpe radiation-hkap la lu ai arung arai ni hte hpaw nna, grai sawng ai lamu ga makau grup yin a ra kadawn ai lam ni hpe hkan sa lu ai.
Cable hpe lata ai shaloi, frequency range, power atsam, bend radius, manu jahpu ni hpe myit yu ra ai. Ga shadawn, n-gun kaba ai jai lang ai lam ni hta, cable a voltage standing wave ratio (VSWR) hpe myit maju jung ra ai, n-gun kaba ai jai lang ai lam ni hta gaw, conductor cross-sectional area hte katsi ai hpe shapraw kau ai hkrang hpe kaja dik htum galaw ra ai.
RF cable ni hta hpaji hparat rawt jat wa ai majaw, -frequency kaba ai electronic system ni hpe matut nna galaw shapraw nga ai. Hpaji masa (nanocomposite insulation layers zawn re ai) kaw nna, npawt nhpang hpaji ningnan ni (stretchable coaxial designs zawn re ai) du hkra, shanhte a bungli galaw lu ai lamu ga jarit ni hpe galoi mung shadut nga ai. Htawm hpang de, 6G matut mahkai lam, terahertz hpaji masa, quantum shiga hpaji masa ni rawt jat wa ai hte maren, RF cable ni gaw ultra-wideband, ultra-low loss, hte hpaji rawng ai atsam ni de grau nna rawt jat wa nna, hkum hkrang hte digital mungkan hpe matut mahkai ya ai core bridge tai wa na re.