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From Embedded Antenna Designs: Four 433 MHz terminal antennas for ISM bands
About Symmetry Electronics
Established in 1998, Symmetry Electronics, a Division of Braemac, is a global distributor of electronic components and systems. Combining premier components and comprehensive value-added services with an expert in-house engineering team, Symmetry supports engineers in the design, development, and deployment of a broad range of connected technologies.
Exponential Technology Group Member
Acquired by Berkshire Hathaway company TTI, Inc. in 2017, Symmetry Electronics is a proud Exponential Technology Group (XTG) member. A collection of specialty semiconductor distributors and engineering design firms, XTG stands alongside industry leaders TTI Inc., Mouser Electronics, and Sager Electronics. Together, we provide a united global supply chain solution with the shared mission of simplifying engineering, offering affordable technologies, and assisting engineers in accelerating time to market. For more information about XTG, visit www.xponentialgroup.com.
Focusing on 433 MHz frequencies, EAD presents four 433 MHz terminal antennas for ISM band applications. Many 433 MHz applications require a terminal mounted antenna, typically with a SMA-Male connector. EAD offers a number of interesting solutions for ISM licence-free frequencies and we summarise them here.
WR/WS433 – 433 MHz stub antenna
The WR433 and WS433 antennas are compact quarter wave, groundplane dependent stub antennas. Requiring a groundplane (metal mounting surface) to operate efficiently, the WR433 and WS433 are usually terminated in a SMA-Male connector. Containing a 1/4 wave coil, the antenna element is housed in robust and durable acetal sheath.
433 MHz captive mount antenna
The W433-FLY is a captive-mount 1/4 wave whip antenna with flying lead. The design enables the antenna to be integrated into the wall of an enclosure and the cable fed inside to the radio. As standard the cable is RG174 for a SMA, RP-SMA or MMCX connector, however it can be offered with a U.FL flying lead for radios mounted with U.FL receptacles. The W433-FLY does require a groundplane to operate effectively.
433 MHz quarter-wave helical antenna
The MH433 is a quarter-wave moulded helical antenna usually terminated in SMA-Male connector. Requiring a groundplane to operate effectively, the MH433 is compact whilst retaining some flexibility which is especially helpful in mobile applications. Other frequencies and connectors based on this design are possible, please contact us for more information.
433 MHz groundplane independent whip antenna
The FEW433 is a 433 MHz whip antenna that doesn’t require a groundplane to operate. Based around a moulded sheath, the FEW433 is flexible, however offers robust performance. It is available with the SMA-Male or TNC-Male connector as standard although a RP-SMA connector is also possible.
Four 433 MHz terminal antennas for ISM bands
These antennas are not the only 433 MHz antenna options available from EAD. We can also offer wall-mount or 1/4 wave whip antennas. If you do not see what you need, please use our antenna configurator to determine your requirement.
Source: https://www.ead-ltd.com/news/four-433-mhz-terminal-antennas
About Symmetry Electronics
Established in 1998, Symmetry Electronics, a Division of Braemac, is a global distributor of electronic components and systems. Combining premier components and comprehensive value-added services with an expert in-house engineering team, Symmetry supports engineers in the design, development, and deployment of a broad range of connected technologies.
Exponential Technology Group Member
Acquired by Berkshire Hathaway company TTI, Inc. in 2017, Symmetry Electronics is a proud Exponential Technology Group (XTG) member. A collection of specialty semiconductor distributors and engineering design firms, XTG stands alongside industry leaders TTI Inc., Mouser Electronics, and Sager Electronics. Together, we provide a united global supply chain solution with the shared mission of simplifying engineering, offering affordable technologies, and assisting engineers in accelerating time to market. For more information about XTG, visit www.xponentialgroup.com.