RF Connectors & Antennas from China
1 resources tagged with "Antenna"
Antenna and RF connector sourcing lives or dies on small details: SMA, RP-SMA, MMCX, U.FL/IPEX, BNC, and N-type connectors each have a frequency range, a VSWR limit, and a gold-plating spec that cheap parts quietly miss. The single most common field failure is polarity — ordering SMA when the radio needs RP-SMA — followed by U.FL pigtails with poor crimps that lift the VSWR and kill range. Chinese suppliers around Shenzhen produce the full range, but plating thickness and contact tolerance vary a lot between vendors.
Sourcing RF connectors means confirming polarity, frequency rating, and VSWR up front, because a connector that passes a continuity check can still wreck an RF link. The pitfall is mixing SMA and RP-SMA or accepting thin gold flash that corrodes — we verify polarity against the radio and ask for VSWR test data on the connector at the operating band.
Wiki (1)
FAQ
What is the difference between SMA and RP-SMA connectors?
They are reverse-polarity variants: a standard SMA male has a center pin, while an RP-SMA male has a center socket. They will not mate correctly with each other, so matching polarity to your radio is essential.
Why does VSWR matter when sourcing RF connectors and antennas?
VSWR measures impedance match; a high value means power is reflected rather than radiated, reducing range. A poorly crimped U.FL or out-of-spec connector raises VSWR, so ask for test data at your operating frequency.
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