ANT-916-MHW-RPS-S【PDF 3/3 页】ANTENNA 916MHZ

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录51

1页 2页 [3页]

About Gain Plots

The true measure of the effectiveness of an antenna in any given applica-

tion is determined by the gain and radiation pattern measurement. For

antennas gain is typically measured relative to a perfect (isotropic) radia-

tor having the same source power as the antenna under test, the units of

gain in this case will be decibels isotropic (dBi). The radiation pattern is a

graphical representation of signal strength measured at xed distance from

the antenna.

Gain when applied to antennas is a measure of how the antenna radiates

and focuses the energy received into free space. Much like a ashlight

focuses light from a bulb into a speci c direction, antennas can focus RF

energy into speci c directions. Gain in this sense refers to an increase in

energy in one direction over others.

It should also be understood that gain is not free, gain above 0dBi in one

direction means that there must be less gain in another direction. Pictori-

ally this can be pictured as shown in the gures to the right. The orange

pattern represents the radiation pattern for a perfect dipole antenna,

which is shaped like a donut. The pattern for an omnidirectional antenna

with gain is shown in blue. The gain antenna is able to work with a device

located further from the center along the axis of the pattern, but not with

devices closer to the center when they are off the axis the donut has

been squished.

Gain is also related to the overall physical size of the antenna, as well as

surrounding materials. As the geometry of the antenna is reduced below

the effective wavelength (considered an electrically small antenna) the gain

will decrease. As well, the relative distance between an electrically small

antenna and its associated ground will impact antenna gain.

159 Ort Lane, Merlin, OR, US 97532

Phone: +1 541 471 6256

Fax: +1 541 471 6251

www.linxtechnologies.com

Gain Plots

E / Vertical Gain

H / Horizontal Gain

Total Gain

XZ-Plane Gain

YZ-Plane Gain

XY-Plane Gain

Data Sheet ANT-916-MHW-xxx-x

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式