TRA150D-050-5 查看數據表（PDF） - Unspecified

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TRA150D-050-5

High Performance ASK Transceiver

Unspecified 

High Performance ASK Transceiver

TRA150D-050-5

Application Information

Antenna Design

The design and positioning of the antenna is as crucial as the module performance

itself in achieving a good wireless system range. The following will assist the

designer in maximising system performance.

The antenna should be kept as far away from sources of electrical interference as

physically possible. If necessary, additional power line decoupling capacitors should

be placed close to the module.

The antenna ‘hot end’ should be kept clear of any objects, especially any metal as this

can severely restrict the efficiency of the antenna to receive power. Any earth planes

restricting the radiation path to the antenna will also have the same effect.

Best range is achieve with a ground independent, 3dB or better gain, ground-

independent antenna.

Good range can be achieved with either a straight piece of wire, rod or PCB track @

¼ wavelength (500mm). Further range may be achieved if the ¼ wave antenna is

placed perpendicular in the middle of a solid earth plane measuring at least 500mm

radius. In this case, the antenna should be connected to the module via some 50 Ohm

characteristic impedance coax

Revision 1.0

Orbit Communications: Wireless Solutions that Work

www.orbitcoms.com

Page 5

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