The Keysight (Agilent/HP) 87511A is a 50 Ω S-Parameter Test Set designed for use with the HP 8751A Network Analyzer. Operating over a frequency range of 100 kHz to 500 MHz, it provides the transmission and reflection measurement capability required to fully characterize 50 Ω RF components.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Test Set Interconnect (multi-pin), DC Bias inputs (BNC female) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered directly by the HP 8751A Network Analyzer via interconnect cable |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 90 mm × 426 mm × 495 mm |
| Weight | 5.7 kg |
RF & Frequency Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 100 kHz to 500 MHz |
| Nominal Impedance | 50 Ω |
| Number of Test Ports | 2 |
| Test Port Connector Type | Type-N female |
| RF Input Connector Type | Type-N female |
| Test Set Functionality | Full S-parameter measurement (S11, S21, S12, S22) |
DC Bias Capabilities
| Parameter | Value |
|---|---|
| DC Bias Ports | 2 |
| DC Bias Inputs Connector Type | BNC female |
| Maximum Bias Voltage | 30 V |
| Maximum Bias Current | 200 mA |
Control & Interfaces
| Parameter | Value |
|---|---|
| Control Interface to Analyzer | Special interconnect cable connected to the HP 8751A |
Ordering Options & Accessories
| Parameter | Value |
|---|---|
| Compatible Analyzer | HP 8751A Network Analyzer |
| 50 Ohm Port Impedance Option | Standard (HP 87511A) |
| 75 Ohm Port Impedance Option | Available as HP 87511B |
RF Performance
| Parameter | Value |
|---|---|
| Directivity | ≥ 40 dB (300 kHz to 500 MHz), ≥ 35 dB (100 kHz to 300 kHz) |
| Source Match | ≥ 36 dB (300 kHz to 500 MHz), ≥ 30 dB (100 kHz to 300 kHz) |
| Load Match | ≥ 36 dB (300 kHz to 500 MHz), ≥ 30 dB (100 kHz to 300 kHz) |
| Transmission Tracking | ±1.5 dB |
| Reflection Tracking | ±1.5 dB |
| Maximum Input Level | +20 dBm |
| Nominal Insertion Loss | 13 dB (Input to Port 1 or Port 2) |
Performance
| Parameter | Value |
|---|---|
| Test Set Type | S-Parameter (fully bi-directional) |
| Crosstalk | >= 100 dB |
Power Supply
| Parameter | Value |
|---|---|
| Power Source | Supplied by compatible network analyzer via interconnect cable |
Technology
RF / Microwave
Applications
S-Parameter Measurement & Network Analysis