Many customers ask us “What is gain?” It is such a common question that we decided to explain gain and other common wireless terms.
But gain itself is a tricky term to define, so we’re going to explain it here a little more in depth.
One of the major parameters used in analyzing the performance of radio frequency (RF) communications links is the amount of transmitter power directed toward an RF receiver.
This power is derived from a combination of:
- Transmitter power
- The ability of the antenna(s) to direct that power toward an RF receiver(s)
- 900MHz vs. 2.4GHz vs. 5GHz antennas
The radiation pattern of the antenna is determined by the antenna design. The radiation pattern is the ability of an antenna to focus energy in a particular direction when transmitting or to receive energy better from a particular direction when receiving. To determine the directivity of an antenna, we need a reference antenna with which to compare our antenna’s performance.
It should be noted that many issues need to be considered when selecting the “best” antenna for the application, and you should discuss any antenna selection with someone knowledgeable in RF radiation and antenna performance. GNS Wireless has the experts to help you make the “best” selection for performance and price, to fit your application.
Check out some of the best selling antennas by visiting gnswireless.com