Atec Agilent-8757D - Manual (Page 10)

10
Directional bridges
Agilent 85027 series directional bridges (AC/DC)
The 85027 series directional bridges are designed to
operate with either the 8757 in AC or DC detection
modes or with the 8756 or 8755 in AC detection
mode. These bridges offer high directivity, excellent
test port match, and a measurement range of up
to 50 GHz in coax.
General information—directional bridges
Dynamic power accuracy
(50 MHz, 25 ±5 °C, +7 dBm input)
Typical insertion loss
6.5 dB at 10.0 MHz
8.0 dB at 18.0 GHz
10.0 dB at 26.5 GHz
11.0 dB at 40.0 GHz
13.0 dB at 50.0 GHz
Typical minimum input power for a 40 dB return loss
measurement at 18 GHz: +2 dBm
Dimensions: 26 H x 124 W x 118 mm D
(1.0 x 4.9 x 4.4 in)
Weight: Net 0.5 kg (1.2 lb), Shipping 2.3 kg (5 lb)
Accessories included with directional bridges:
85027A
7 mm open/short
Type-N (m)–(m) adapter
85027B
3.5 mm (m) open/short
3.5 mm (m)–(m) adapter
3.5 mm (m)–(f) adapter
85027C
Type-N (m) short
Type-N (m) shielded open
Type-N (m)–(m) adapter
85027D
2.4 mm (f) open
2.4 mm (f) short
85027E
3.5 mm (f) open/short
3.5 mm (f)–(f) adapter
3.5 mm (f)–(m) adapter
System accessories, continued
Directional Bridge Summary
For use with the 8757 in AC or DC detection mode or with the 8756 or 8755 in AC detection mode only
Frequency Nominal Input Test port Test port
Model range impedance connector connector Frequency Directivity Frequency match
85027A 10 MHz to 50 ohms Type-N (f) 7 mm 0.01 to 18 GHz 40 dB 0.01 to 8.4 GHz <1.15 SWR
18 GHz 8.4 to 12.4 GHz <1.25 SWR
12.4 to 18 GHz <1.43 SWR
85027B 10 MHz to 50 ohms 3.5 mm (f) 3.5 mm (f) 0.01 to 20 GHz 40 dB 0.01 to 8.4 GHz <1.15 SWR
26.5 GHz 20 to 26.5 GHz 36 dB 8.4 to 20 GHz <1.43 SWR
20 to 26.5 GHz <1.78 SWR
85027C 10 MHz to 50 ohms Type-N (f) Type-N (f) 0.01 to 12.4 GHz 36 dB 0.01 to 8.4 GHz <1.15 SWR
18 GHz 12.4 to 18 GHz 34 dB 8.4 to 12.4 GHz <1.25 SWR
12.4 to 18 GHz <1.43 SWR
85027D 10 MHz to 50 ohms 2.4 mm (f) 2.4 mm (m) 0.01 to 26.5 GHz 35 dB 0.01 to 16 GHz <1.18 SWR
50 GHz 16 to 30 GHz <1.27 SWR
26.5 to 40 GHz 30 dB 30 to 40 GHz <1.40 SWR
40 to 50 GHz 25 dB 40 to 50 GHz (typical) <1.85 SWR
85027E 10 MHz to 50 ohms 3.5 mm (f) 3.5 mm (m) 0.01 to 20 GHz 40 dB 0.01 to 8.4 GHz <1.15 SWR
26.5 GHz 20 to 26.5 GHz 36 dB 8.4 to 20 GHz <1.43 SWR
20 to 26.5 GHz <1.78 SWR