 Recessed threads (left), Protruding threads (right) | |||
| Type | RF coaxial connector | ||
|---|---|---|---|
| Production history | |||
| Manufacturer | Originally Amphenol, then Hewlett-Packard, then others | ||
| General specifications | |||
| Diameter | 7 mm (0.28 in) | ||
| Passband | 0–18 GHz | ||
The APC-7 connector (also referred to as a 7 mm connector) is a precision coaxial connector used on laboratory microwave test equipment for frequencies up to 18 GHz. APC-7 connectors are advantageous because they have a low reflection coefficient, make repeatable coaxial connections, and are genderless.[1] The connectors are expensive, so they are seldom used outside the laboratory where their cost can be justified by their accuracy and convenience. Due to their high cost, their 18 GHz frequency limitation, and new laboratory practices,[note 1] the connectors are now uncommon. Modern low-frequency microwave equipment often uses the less expensive 3.5 mm (26.5 GHz) connector. Higher-frequency equipment must use higher-performance connectors such as the 2.92 mm (40 GHz), 2.4 mm (50 GHz), 1.85 mm (67 GHz), or 1.0 mm (110 GHz) connectors.[2]
- ^ Coaxial & Waveguide Catalog and Microwave Measurement Handbook. Palo Alto, CA: Hewlett-Packard. 1979. p. 90. 5952-8207D.
- ^ "Microwave Coaxial Connectors". www.microwaves101.com. 2009-05-03. Archived from the original on 2009-05-12. Retrieved 2010-04-05.
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