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Study › General › G6B › G6B11

G6B11

CIRCUIT COMPONENTS · - Analog and digital integrated circuits (ICs); microwave ICs (MMICs); display devices; RF connectors; ferrite cores

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What is an SMA connector?

  1. AA type-S to type-M adaptor
  2. BA small threaded connector suitable for signals up to several GHz
  3. CA connector designed for serial multiple access signals
  4. DA type of push-on connector intended for high-voltage applications
Why SMA stands for SubMiniature version A, a small screw-on (threaded) coaxial connector with a 50 ohm impedance. Because the threaded coupling keeps a precise, tight connection and the connector is physically small, it maintains good performance well into the microwave region, commonly specified to 18 GHz. You will find SMA connectors on handheld transceiver antennas, test cables, and GHz-range modules and MMIC boards.
Watch out The letters are not an acronym for a signaling scheme, so 'serial multiple access' is invented; and SMA threads on rather than pushing on, and it is a low-power RF connector, not a high-voltage one.
SMA = SubMiniature A: small, screws on, good for several GHz.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
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The rest of G6B

  1. G6B01 What determines the performance of a ferrite core at different frequencies?
  2. G6B02 What is meant by the term MMIC?
  3. G6B03 Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?
  4. G6B04 What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors?
  5. G6B05 What is an advantage of using a ferrite core toroidal inductor?
  6. G6B06 What kind of device is an integrated circuit operational amplifier?
  7. G6B07 Which of the following describes a type N connector?
  8. G6B08 How is an LED biased when emitting light?
  9. G6B10 How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?
  10. G6B11 What is an SMA connector?
  11. G6B12 Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?
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