Beijing, August 21, 2025-Wɔ nnwuma a ɛrenya nkɔsoɔ ntɛmntɛm te sɛ 5G nkitahodiɛ, satellite intanɛt, ne milimita-asorɔkye radar mu no, RF coaxial nkitahodifoɔ yɛ nneɛma titire a wɔde mena nsɛnkyerɛnneɛ, na wɔn adwumayɛ nya nhyehyɛeɛ no nyinaa gyinabea so nkɛntɛnsoɔ tẽẽ. Esiane sɛ wɔrehwehwɛ nneɛma a wɔde di dwuma mpɛn pii nti, mfiridwumayɛfo rehyia nsɛnnennen a emu yɛ den kɛse mpo. Nnansa yi, nnwuma mu abenfo abɔ afotu anum a mfaso wɔ so a ɛbɛboa mfiridwumayɛfo ma wɔayɛ connector no yiye, ama sɔhwɛ no atu mpɔn, na wɔatrɛw mfiri nkwa nna mu no mua.
Afotu 1: Paw Impedance Matching a Ɛfata
Ɛsɛ sɛ RF coaxial connectors (mpɛn pii no 50Ω anaa 75Ω) no impedance ne nhyehyɛe no hyia pɛpɛɛpɛ; anyɛ saa a, sɛnkyerɛnne a ɛdannan ne tumi a ɛyera bɛba. "Wɔ milimita-asorɔkye frequency bands (sɛ nhwɛso no, ɛboro 28GHz) mu no, mpo dimensional deviation a ɛyɛ 0.1mm betumi ama SWR no asɛe kɛse," mfiridwuma kwankyerɛfo bi a ɔwɔ amanaman ntam nkitahodi yɛfo bi kae. Ɛsɛ sɛ mfiridwumayɛfo de standard impedance models a nea ɔyɛe no de ama no di kan na wɔde vector network analyzer (VNA) di dwuma de hwɛ sɛ ɛne ne ho hyia ankasa.
Afotu 2: Hwɛ yiye wɔ contact interface no a wobɛhohoro ne sɛnea wobɛhwɛ so yiye no ho.
Connector pins ne sockets taa yɛ oxidation ne dade asɛe bere a wɔde ahyɛ mu mpɛn pii na wɔayi afi mu akyi, na ɛma contact resistance kɔ soro. "Yɛhyɛ nyansa sɛ fa cotton swab a nsa- nnim di dwuma mfa nsiesie nkitahodi ahorow no na fa mfutuma nkataso hyehyɛ mmeae a emu yɛ den," mfiridwumayɛfo bi a ɔde ne ho hyɛɛ 6G nhwɛsode a wɔyɛ mu kae. Wɔ tebea horow a wotumi de ho to so kɛse (te sɛ ahunmu dwumadie) ho no, ɛsɛ sɛ sika kɔkɔɔ a wɔde akata so no mu duru boro 1μm na ama ahoɔden a ɛko tia ɔsɛeɛ no ayɛ kɛseɛ.
Afotu 3: Yɛ instɔlehyɛn torque control yiye.
Sɛ wokyekyere no boro so anaasɛ wokyekyere no yiye a, ebetumi ama nkitahodi no nkwa nna ayɛ tiaa. Nnwumayɛbea data kyerɛ sɛ torque a wɔkamfo kyerɛ ma SMA nkitahodi ahorow no yɛ 0.7–1.0 N·m, bere a 2.92mm pɛpɛɛpɛ nkitahodi ahorow hwehwɛ sɛ wɔyɛ pɛpɛɛpɛ 0.35 N·m. "Sɛ wɔde torque-limited wrench di dwuma a, ɛtew nnipa mfomso so, a ɛho hia titiriw wɔ nneɛma a wɔyɛ pii mu," R&D sohwɛfo a ɔyɛ sɔhwɛ mfiri yɛfo bi sii so dua.
Afotu 4: Ma ahobanbɔ a etu mpɔn wɔ frequency a ɛkorɔn mu nkɔ anim.
Wɔ 5G milimita asorɔkye frequency band no mu no, connector shielding a ɛnnɔɔso no betumi de electromagnetic interference (EMI) nsɛm aba. Ano aduru a aba foforo no bi ne nneɛma a ɛbɔ ho ban mprɛnsa ne nneɛma a ɛba fam-dielectric-constant insulation nneɛma. "Wɔ yɛn lab mu no, yehui sɛ PTFE (polytetrafluoroethylene) padding a yɛde bɛka ho no betumi ama shielding attenuation atu mpɔn bɛboro 10dB," sukuupɔn nhwehwɛmu kuw bi kannifo kae.
Afotu 5: Ɔhaw a Wosiesie no Ntɛmntɛm
Sɛ nhyehyɛe bi nya nsɛnkyerɛnne a ɛnteɛ a, mfiridwumayɛfo betumi de anammɔn abiɛsa- kwan adi dwuma de ahu nkitahodi ho nsɛm:
1. Nhwehwɛmu a wɔde ani hu: Hwɛ sɛ ebia pin a abɔ anaasɛ plating peeling;
2. Bere domain reflectometry (TDR) sɔhwɛ: Hwehwɛ impedance discontinuities;
3. Ɔkwan a wɔfa so sesa: Sesa nkitahodi a wosusuw sɛ ɛwɔ hɔ no na ama woahwɛ sɛ asɛm no yɛ nokware anaa.
"High-frequency mfomso taa ba wɔ connector interfaces abiɛsa a edi kan no so. Sɛ wode mmeae yi di kan a, ebetumi akora bɛboro 50% wɔ ɔhaw ahorow ano aduru bere mu," RF mfiridwumayɛfo panyin bi tu fo.
Industry Trend: Miniaturization ne frequency a ɛkorɔn hyia wɔ bere koro mu
Bere a chip package akɛse so tew no, ahwehwɛde a ɛfa ultra-nkitaho nketewa, mpo 1.0mm ne 0.8mm, renya nkɔanim ntɛmntɛm. Bere koro no ara mu no, waveguide-to-coaxial conversion mfiridwuma a ɛboa frequency a ɛboro 110 GHz abɛyɛ nhwehwɛmu ne nkɔso beae a ɛyɛ hyew. Abenfo hyɛ nkɔm sɛ nkitahodi ahorow a nyansa wom a wɔde ɔhyew a wɔde tua ho ka a wɔaka abom no bɛyɛ nea abu so nkakrankakra wɔ mfe anum a edi hɔ no mu.
Awie
RF coaxial connectors adwumayɛ a ɛbɛyɛ papa no hwehwɛ sɛ wɔde nsusuwii ne nneyɛe bom kɔ akyiri. Sɛ wodi atifi hɔ akwan no yiye a, ɛnyɛ sɛ ɛbɛma mfiridwuma mu adwumayɛ atu mpɔn nko na mmom ɛbɛto fapem a ɛyɛ den ama awo ntoatoaso a edi hɔ- nkitahodi nhyehyɛe. Sɛnea nnwuma ho ɔbenfo bi kae no, "Nsɛm a ɛkɔ akyiri na ɛkyerɛ sɛnea nsɛnkyerɛnne a ɛwɔ frequency a ɛkorɔn-di nkonim anaasɛ entumi nyɛ yiye, na nkitahodi ahorow na ɛwɔ saa nsɛm yi mu titiriw."
(Nsɛm a wonya fibea: Amanaman Ntam Nkitahodi Fekuw (ICA), IEEE Nkitahodi a ɛfa Microwave Nsusuwii ne Mfiridwuma Ho)