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參數(shù)資料
| 型號(hào)： | SW-258 |
| 英文描述： | Schottky Barrier Diodes |
| 中文描述： | 肖特基勢壘二極管 |
| 文件頁數(shù)： | 4/4頁 |
| 文件大小： | 94K |
| 代理商： | SW-258 |
2 Watt Cellular T/R and Antenna Changeover Switch
SW-358, SW-359A
V2.00
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
I
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
I
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
4
Specifications Subject to Change Without Notice.
T/R Intermodulation Products Test Set-Up
This set-up tests the intermodulation product at the receiver
frequency of 875 MHz generated by the intermodulation of the 1W
Tx signal at 830 MHz (f1) and a Rx spurious at 785 MHz (f2).
A +10 dBm spurious signal is used in order to overcome measure-
ment sensitivity.
To calculate the intermodulation product, at the RF2 port, for a
different Tx power level (p1) and a different Rx spurious level (p2),
use the following formula:
p
spur
(@ RF2) = (2p1 + p2) - 148 dBm
To calculate the intermodulation product, at the RF1 port, for a
different Tx power level (p1) and a different Rx spurious level (p2),
use the following formula:
p
spur
(@ RF1) = (2p1 + p2) - 130 dBm
Rx Spurious
+10 dBm (p2)
785 MHz (f2)
875 MHz filter
Isolator
40 dB
V
CC
(SW-358 only)
875 MHz
Intermodulation
Spurious (p
spur
)
Isolator
20dB
RFC
RF1
DUT
RF2
CTL A
CTL B
Tx tone 1W
output power(p1)
830 MHz (f1)
Spectrum
Analyzer
875 MHz (2f1-f2)
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