However, you can get other connectors with higher rated frequencies. However, the proprietary version is rated at a frequency of up to 26.5GHz. This restriction limits their connection cycle.Īs mentioned earlier, the mode-free DC operating frequency of the SMA connector is as high as 18 GHz. The fit of the connector and the variability of the structure limit the repeatability of its impedance. These SMA connectors have PTFE dielectric and have contacts on the mating plane. Professional torque wrench for fastening SMA connectorsĪpplying a torque higher than the recommended will weaken the strength of the connector, thereby reducing the number of plugs. Therefore, brass connectors require 0.3-0.6Nm or 3-5in-lbf. SMA connectors usually have a 500 plug-in rating, but this durability depends on the fastening torque.įor stainless steel SMA connectors, set the torque of the fastening wrench to 0.8-1.1Nm or 7-10 in-lbf.īrass is relatively soft. On the other hand, the center pin of the female reverse polarity SMA connector has an externally threaded cylinder. However, for reverse polarity SMA connectors, the male connector has a central sleeve surrounded by an internally threaded cylinder. This gender difference corresponds to the direction of the innermost component. On the other hand, the SMA female connector has a central sleeve, which is surrounded by a cylinder with an external thread. High frequency, right angle SMA connector The pin has a surrounding cylinder with internal threads. The male SMA connector has a 5/16-inch threaded nut, and the standard polarity type has a center pin with a diameter of 0.9 mm. The coaxial connector has a threaded cylinder with 36 threads per inch. Mechanically compatible connectors such as K connectors enable SMA to operate at frequencies up to 40 GHz. But this is extended by dealing with variants of 18-26.5 GHz. The connector was originally suitable for DC frequencies from 0-12 GHz. The merger took place in 1968, and since then the connector has received the SMA name. James Cheal of the Bendix Research Laboratory designed the connector, and the continuous development of the laboratory incorporated it into MIL-C-39012. The SMA connector was originally a BRM (Bendix Real Miniature) connector in the 1950s. These coaxial cable connectors are usually used in high-frequency applications, as shown below. Some proprietary versions operate at frequencies as high as 26.5GHz, but the standard version has an upper operating frequency limit of 18 GHz.Ĭonnectors come in many forms, including male, female, right-angle and straight-through. SMA (ultra-small version A) is a semi-precision 50 ohm impedance connector with an operating frequency of up to 18 GHz. The last two are more common in RF applications, and we will compare SMA and BNC to highlight their performance. They include N-type, UHF, TNC, SMA, and BNC. Regarding SMA and BNC, when comparing the connectors of RF transmission lines, there are different options for you to choose from.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |