Application Notes for Microwave Attenuators

Millimeter Wave Attenuators Selection Guide

Herley wideband millimeter-wave attenuators are available in three configurations.

Model 1959 is current-controlled, while the Model D1959, which incorporates a hybrid driver, is voltage-controlled with a linearized transfer function of 10 dB per volt.

The digitally-controlled Model 3499 provides 0.03 dB resolution (11 bits) and switching speed of less than 500nsec.

Each of the three models operates over the full frequency range from 18-40 GHz with a dynamic attenuation range of 50 dB.

FREQUENCY RANGE (GHz)	Attenuation Range (dB)	MODEL OR SERIES	SPEC	COMMENTS
Continuously variable, current controlled Attenuator
	50	1959
Continuously variable, voltage controlled Attenuator
	50	D1959
Digitally Programmable Attenuator
	50	3499

Herley - General Microwave specializes in developing and producing customized microwave components and millimeter wave products for the defense and aerospace industries as well as for non-defense applications such as communication systems. Herley General Microwave produces the industry standard General Microwave line of off-the-shelf catalog RF components. If you are looking for a solid state power amplifier, microwave synthesizer or other microwave oscillators, microwave receiver, microwave switches, microwave attenuator, microwave limiter, microwave phase shifter, or microwave IQ vector modulator; we can produce components meeting your requirements at a very competitive price. We also produce high quality customized integrated microwave assemblies such as up and down converters, DLVAs, beam forming networks, front ends, or switched bank filters, that can be used in a wide variety of demanding applications. Herley General Microwave (HGMI), a subsidiary of Herley Industries provides solutions for electronic warfare systems, phased array radar systems, electronic warfare simulators, test equipment and test systems and other defense and non-defense systems. We look forward to working with you, so please contact us today.