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參數(shù)資料
| 型號： | RC2204MM |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ZigBee Ready RF Transceiver Modules |
| 中文描述： | 的ZigBee功能的RF收發(fā)模塊 |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 372K |
| 代理商： | RC2204MM |
The simplest antenna to use is the quarter wave whip antenna. A quarter wave whip antenna
above a ground plane yields 37 Ohm impedance and a matching circuit for 50 Ohm are
usually not required.
A PCB antenna can be made as a copper track where the ground plane is removed on the
back side. The rest of the PCB board should have a ground plane as large as possible,
preferably as large as the antenna itself, to make it act as a counterweight to the antenna. If
the track is shorter than a quarter of a wavelength, the antenna should be matched to 50
ohms.
The length of a quarter wave antenna is 2.9 cm at 2450 MHz.
RC220x
2005 Radiocrafts AS
RC220x Data Sheet (rev. 1.0)
Page 12 of 17
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| RC2207 | 制造商:Thomas & Betts 功能描述:RC2207 INS VINYL LKG FORK TERM, 制造商:Thomas & Betts 功能描述:INS VINYL LKG FORK TERM, 12-10, #6, 制造商:Thomas & Betts 功能描述:Fork Terminal 10-12AWG 27.68mm 7.87mm Electro-Tin Bulk |
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