The Keysight Agilent 11974A is a high-performance preselected millimeter-wave harmonic mixer covering the 26.5 to 40 GHz frequency range (Ka-band). Designed to eliminate the need for signal identification or preselection adjustments when used with compatible spectrum analyzers, it features an integrated YIG-preselector that suppresses images and multiple responses.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | LO Input (Type-N female), IF Output (Type-N female), Power/Tuning Control Cable (permanently attached) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | +15 VDC and -15 VDC (typically supplied via host instrument probe power) |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 159 mm × 102 mm × 184 mm |
| Weight | 2.1 |
| Shipping Weight | 4.5 kg |
Frequency & Band Specifications
| Parameter | Value |
|---|---|
| RF Input Frequency Range | 26.5 to 40 GHz |
| LO Input Frequency Range | 3.0 to 6.1 GHz |
| IF Output Frequency | 321 MHz |
| Harmonic Number (N) | 8 |
| Waveguide Band Designation | Ka-band / WR-28 |
Port & Interface Characteristics
| Parameter | Value |
|---|---|
| RF Input Connector Type | WR-28 Waveguide (UG-599/U flange) |
| LO Input Connector Type | Type-N (female) |
| IF Output Connector Type | Type-N (female) |
| Impedance | 50 Ω nominal (LO and IF ports) |
RF Performance Parameters
| Parameter | Value |
|---|---|
| Nominal LO Drive Level | +14 to +18 dBm (+16 dBm nominal) |
| Maximum RF Input Power (CW) | +20 dBm (100 mW) |
Preselector Specifications
| Parameter | Value |
|---|---|
| Image Rejection | >50 dB |
| Multiple Responses Suppression | >50 dB |
Performance
| Parameter | Value |
|---|---|
| Preselector 3 dB Bandwidth | > 100 MHz (typically 140 MHz) |
| 1 dB Gain Compression | -1.5 dBm |
Limits
| Parameter | Value |
|---|---|
| Maximum LO Input Power | +20 dBm |
Power
| Parameter | Value |
|---|---|
| Power Source | Requires +/-15 VDC from host spectrum analyzer or external power supply |
Technology
YIG-Tuned Preselected Harmonic Mixer
Applications
Millimeter-wave spectrum analysis and signal conversion
Looking for the Keysight Technologies (Agilent HP) 11974A?
Tell us what you need. We're building a network of equipment dealers and will get back to you if we can help source it — no obligation.
Selling this kind of equipment? Sell with us