EIA RF Connectors

EIA RF Connectors are used to connect two items of high power radio frequency rigid or semi-rigid (flexline) coaxial transmission line. Typically these are only required in very high power transmitting installations (10s of kW to MW) where the feedline diameters may be several inches. One side of the connection is denoted as a male connection, or bullet, while the other side is denoted as the female connection, or cup. The EIA under the Electronic Components Industry Association (http://www.ecianow.org/), are responsible for a number of standard imperial connector sizes.

Dimensions

The flange design, inner and outer conductor dimensions are standardized, by EIA, in the RS-225, 50 Ω (ohm), and RS-259, 75 Ω, standards. They are commonly referred to by the inner diameter of the outer conductor in fractional inches. Sizes covered under these two standards range from 3/8 to 6 1/8 inch outside diameter (OD) for 50 Ω and 3/8 to 3 1/8 inch OD for 75 Ω. Peak pulse power handling, driven by voltage breakdown, is more or less frequency independent for any given size (and can be deduced by assuming ~300 V RMS per mm of inner to outer spacing), but the average power, limited by losses heating the centre conductors, increases approximately with the square root of the operating frequency. Commonly the limit is quoted as that dissipation that will raise the inner temperature to 100 °C when the outer is maintained constant at +40 °C. Field failures can occur at power levels well below this if the central bullet connections are not making uniform positive contact and free of contamination. Conversely the average power ratings can be significantly exceeded if there is forced air flow either through the inner conductor or through the void between the inner and outer conductors. Many years ago, the two RS standards were considered obsolete by EIA. Only recently (until 2007) there has been an effort by manufacturers in the US to update these standards.

국제표준

해당 국제 표준은 국제 전기 기술 위원회: IEC 60339-1[1] 및 IEC 60339-2에 의해 간행된다.[2] 이러한 표준은 EIA 표준에서 누락된 많은 추가 크기를 포함하기 때문에 더 완전하다.

상호 호환성

이러한 크기의 대부분은 MIL-DTL-24044에서 미군이 정의한 RF 커넥터와도 교환이 가능하다.[3][4]

갤러리

  • EIA 플랜지 커넥터 및 N 소켓 측 어댑터

  • Band II 결합기에서 사용 중인 EIA 플랜지 커넥터

  • Diplexer에서 사용 중인 EIA 플랜지 커넥터

  • EIA Flange 커넥터, 어댑터, 글머리 기호 등의 수집

제조자

www.brackemfg.com

참조

  1. ^ "IEC 60339-1:1971 General purpose rigid coaxial transmission lines and their associated flange connectors - Part 1: General requirements and measuring methods" (PDF). International Electrotechnical Commission.
  2. ^ "IEC 60339-2:1996 General purpose rigid coaxial transmission lines and their associated flange connectors - Part 2: Detail specifications" (PDF). International Electrotechnical Commission.
  3. ^ "DLA Land and Maritime MilSpecs & Drawings". Landandmaritime.dla.mil. Archived from the original on 2013-03-09. Retrieved 2012-06-01.
  4. ^ Defense Standardization Program Office. "Search - Results - Document Details". assistdocs.com. Retrieved 2012-06-01.