Series 8650B Universal Power Meters
B-12
Publication 31470-001, Rev C, November 2, 2017
B.2.3
Directional Bridges
The 80500 CW Directional Bridges are designed specifically for use with Giga-tronics power meters to measure
the Return Loss/SWR of a test device. Each bridge includes an EEPROM which has been programmed with
Identification Data for that bridge.
Table B-4: Directional Bridge Selection Guide
Precision CW Return Loss Bridges
Model Freq. Range/
Power Range
Max.
Power
Power Linearity
4
(Freq >8 GHz)
Input
Test
Port
Directivity Wgt. VSWR
80501
10 MHz to 18 GHz
-35 to +20 dBm
+27 dBm
(0.5W)
-35 to +10 dBm ±0.1 dB
+10 to +20 dBm ±0.1 dB
±0.005 dB/dB
Type N(f)
50 Ω
Type N(f)
50 Ω
38 dB
0.340 kg <1.17:0.01 - 8 GHz
<1.27:8 - 18 GHz
80502
10 MHz to 18 GHz
-35 to +20 dBm
+27 dBm
(0.5W)
-35 to +10 dBm ±0.1 dB
+10 to +20 dBm ±0.1 dB
±0.005 dB/dB
Type N(f)
50 Ω
APC-7(f)
50 Ω
40 dB
0.340 kg <1.13:0.01 - 8 GHz
<1.22:8 - 18 GHz
80503
10 MHz to 26.5 GHz
-35 to +20 dBm
+27 dBm
(0.5W)
-35 to +10 dBm ±0.1 dB
+10 to +20 dBm ±0.1 dB
±0.005 dB/dB
SMA(f)
50 Ω
SMA(f)
50 Ω
35 dB
0.340 kg <1.22:0.01 - 18 GHz
<1.27:8 - 26.5 GHz
80504
10 MHz to 40 GHz
-35 to +20 dBm
+27 dBm
(0.5W)
-35 to +10 dBm ±0.1 dB
+10 to +20 dBm ±0.1 dB
±0.005 dB/dB
Type K(f)
50 Ω
Type K(f)
50 Ω
30 dB
0.198 kg <1.35:0.01 - 26.5 GHz
<1.44:26.5 - 40 GHz
The Selection Guide in Table B-4 shows primary specifications. Additional specifications are:
Bridge Frequency Response
Return loss measurements using the 8650B power meter can be frequency compensated using the standard
Open/Short supplied with the bridge.
Insertion Loss
6.5 dB, nominal, from input port to test port
Maximum Input Power
+27 dBm (0.5 W)
Directional Bridge Linearity Plus Zero Set & Noise vs. Input Power
(See the following figure)
Содержание 8650B Series
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