Variable CVA

Variable Attenuators For Ka-Band

These Continuously Variable Attenuators have been selected from our standard product line and have been custom tuned for Ka-Band application, covering the waveguide sizes WR51 through WR28. The attenuating elements have been trimmed to provide a smooth adjustment in attenuation, all models have a maximum VSWR of 1.15 and a maximum insertion loss of 0.5dB.

The assembly construction includes a multi-turn dial useful for adjusting attenuation, and can be calibrated at a spot frequency upon request. The flat with frequency model provides the same attenuation value set across the full frequency band to within the flatness spec or better. Other dB value are available upon request. For more information feel free to call us and discuss your needs with one of our design engineers.

Waveguide Attenuators, Continuously Variable (CVA) Ka-Band, Downlink 18.3-20.2 GHz, Uplink 27.5-31.0 GHz
Waveguide Continuously Variable Attenuator	Waveguide Continuously Variable Attenuator - Diagram

Waveguide Attenuators, Continuously Variable (CVA)
Ka-Band, Downlink 18.3-20.2 GHz, Uplink 27.5-31.0 GHz

Waveguide Continuously Variable Attenuator

Waveguide Continuously Variable Attenuator - Diagram

Level Adjust Standard Models
WG Size	Freq (GHz)	Power (Watts)	Standard Model No.*	Length (L) Inches	Flatness +/- dB	Outline Drawing
WR51	18.3 - 20.2	1	51Ka-620A-30-6-6	3.0	N/A
WR42	18.3 - 20.2	1	42Ka-620A-30-6-6	3.0	N/A
WR34	27.5 - 31.0	1	34Ka-620A-30-6-6	3.0	N/A
WR28	27.5 - 31.0	1	28Ka-620A-30-6-6	3.0	N/A

Frequency Flat Models
WG Size	Freq (GHz)	Power (Watts)	Standard Model No.*	Length (L) Inches	Flatness +/- dB	Outline Drawing
WR51	18.3 - 20.2	1	51Ka-AF620A-10-6-6	3.0	+/- 1.0dB
WR42	18.3 - 20.2	1	42Ka-AF620A-10-6-6	3.0	+/- 1.0dB
WR34	27.5 - 31.0	1	34Ka-AF620A-10-6-6	3.0	+/- 1.0dB
WR28	27.5 - 31.0	1	28Ka-AF620A-10-6-6	3.0	+/- 1.0dB

Ordering Information Waveguide Variable Attenuators for Ka-Band	WR	-Mod	M	-dB	-F1	-F2
Example part number:	34ka	-620	A	-30	-6	-6
Waveguide Size: (WR) WR28 thru WR284 available
Basic Model No.: (-Mod) -620 for Level Adjust -AF620 for Flat w/ Frequency
Material (M): A=Aluminum, B=Copper/Brass
Coupling (-dB) 0 to 30 possible **
Flange 1 (-F1): 6=Cover, 8=Cover Groove
Flange 2 (-F1): 6=Cover, 8=Cover Groove See ATM Standard Flange page for more info.

* The Standard Model Numbers above are the most common parts ordered for size, material and flange. However, these models can easily be altered for your needs by using the Model # code system to the left.

** 0-30dB for Level Adjust Models
** 0-10dB for Freq. Flat Models

Continuously Variable Attenuators For Ka-Band

Variable Attenuators For Ka-Band