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参数资料
| 型号： | ANT-868-WRT-RPS |
| 厂商： | Linx Technologies Inc |
| 文件页数： | 2/2页 |
| 文件大小： | 370K |
| 描述： | ANTENNA 868MHZ WRT SERIES RPSMA |
| 产品目录绘图： | ANT-xxx-WRT |
| 标准包装： | 50 |
| 系列： | WRT - Antenna Factor |
| 天线类型： | 圆顶，1/4 波，固定式 |
| 频带数目： | 1 |
| 频率： | 868MHz（855.5MHz ~ 880.5MHz） |
| VSWR： | 1.9 |
| 端子： | RP-SMA |
| 安装类型： | 底座安装 |
| 高度（最大）： | 0.43"（11mm） |
| 包装： | 散装 |
2
SWR
Reflected Power
3:1
2:1
1:1
25%
11%
0%
868MHz
968MHz
768MHz
1.141
by
Data Sheet ANT-868-WRT-xxx
VSWR Graph
What is VSWR?
The Voltage Standing Wave Ratio (VSWR) is a measurement of how well
an antenna is matched to a source impedance, typically 50-ohms. It is
calculated by measuring the voltage wave that is headed toward the load
versus the voltage wave that is reflected back from the load. A perfect
match will have a VSWR of 1:1. The higher the first number, the worse the
match, and the more inefficient the system. Since a perfect match cannot
ever be obtained, some benchmark for performance needs to be set. In
the case of antenna VSWR, this is usually 2:1. At this point, 88.9% of the
energy sent to the antenna by the transmitter is radiated into free space
and 11.1% is either reflected back into the source or lost as heat on
the structure of the antenna. In the other direction, 88.9% of the energy
recovered by the antenna is transferred into the receiver. As a side note,
since the :1 is always implied, many data sheets will remove it and just
display the first number.
How to Read a VSWR Graph
VSWR is usually displayed graphically versus frequency. The lowest point
on the graph is the antennas operational center frequency. In most cases,
this will be different than the designed center frequency due to fabrication
tolerances. The VSWR at that point denotes how close to 50-ohms the
antenna gets. Linx specifies the recommended bandwidth as the range
where the typical antenna VSWR is less than 2:1.
相关PDF资料 |
PDF描述 |
|---|---|
| ANT-916-CW-HD | ANTENNA 916MHZ 1/4 WAVE WHIP |
| ANT-916-CW-HWR-RPS | ANTENNA 916MHZ 1/2 WAVE RP/SMA |
| ANT-916-CW-HW | ANTENNA 916MHZ 1/2 WAVE DIPOLE |
| ANT-916-CW-QW-SMA | ANTENNA 916MHZ 1/4 WAVE WHIP |
| ANT-916-CW-RAH | ANTENNA 916MHZ RA 1/4WAVE RPSMA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ANT-868-WRT-SMA | 功能描述:天线 868MHz Compact Ant. SMA Connector RoHS:否 制造商:Molex 技术类型:Cellular Antenna 频率: 带宽: 尺寸:106.7 mm L x 13 mm W |
| ANT-868-WRT-UFL | 功能描述:天线 868MHz Compact Ant. U.FL Connector RoHS:否 制造商:Molex 技术类型:Cellular Antenna 频率: 带宽: 尺寸:106.7 mm L x 13 mm W |
| ANT870-150-50R0J | 制造商:Aeroflex / KDI 功能描述:RF TERMINATION |
| ANT-8WHIP3H-SMA | 制造商:RF Solutions LTD 功能描述:ANT 868MHZ WHIP HINGED SMA |
| ANT-8WPIG-UFL | 功能描述:ANTENNA 868MHZ, WHIP, 50MM OPIGT 制造商:rf solutions 系列:- 包装:散装 零件状态:在售 频率组:UHF（300 MHz ~ 1 GHz） 频率（中心/带）:868MHz 频率范围:- 天线类型:鞭状，直形 频带数:1 VSWR:- 回波损耗:- 增益:- 特性:- 端接:连接器，U.FL 侵入防护:- 安装类型:面板安装 高度（最大值）:1.969"（50.00mm） 应用:通用 标准包装:1 |
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