Agilent Technologies E4440A manual RF and Transient Limiters, Power Splitters

Options and Accessories

Accessories

HP/Agilent 11974 Series Preselected Millimeter Mixers

11974 Series preselected millimeter mixers are available to extend the frequency range of analyzers with Option AYZ (external mixing) up to 75 GHz. Preselection reduces mixer overload from broadband signals, reduces radiation of local oscillator harmonics back to the device under test, and reduces the level of image and multiple responses displayed. The following four models are available:

Table 5-2

HP/Agilent	Frequency Range	Options
Model Number
11974A	26.5 to 40.0 GHz	and
11974Q	33.0 to 50.0 GHz
		Accessories
11974U	40.0 to 60.0 GHz
11974V	50.0 to 75.0 GHz

RF and Transient Limiters

The Agilent 11867A and N9355B RF Limiters protect the analyzer input circuits from damage due to high power levels. The 11867A operates over a frequency range of dc to 1800 MHz and begins reflecting signal levels over 1 mW up to 10 W average power and 100 watts peak power. The N9355B microwave limiter (0.1 to 18 GHz) guards against input signals over 1 milliwatt up to 1 watt average power and 10 watts peak power.

The Agilent 11947A Transient Limiter protects the analyzer input circuits from damage due to signal transients. It specifically is needed for use with a line impedance stabilization network (LISN). It operates over a frequency range of 9 kHz to 200 MHz, with 10 dB of insertion loss.

Power Splitters

The Agilent 11667A/B/C power splitters are two-resister type splitters that provide excellent output SWR, at 50 Ω impedance. The tracking between the two output arms, over a broad frequency range, allows wideband measurements to be made with a minimum of uncertainty.

11667A: DC to 18 GHz

11667B: DC to 26.5 GHz

11667C: DC to 50 GHz

Chapter 5 73