Pasternack Enterprises

Same-Day Shipping of +40,000

RF and Microwave Products


Official Pasternack

Distributor for

UK and Ireland




Pasternack waveguides are structures for guiding electromagnetic waves,

these can also be called a waveguide transmission line. Our waveguides are

low loss transmission lines capable of handling high power with high isolation.

RF waveguides are commonly used for microwave and millimeter wave

communications requiring low loss capabilities, typically not possible with coaxial cables

only. Applications for microwave and millimeter wave waveguides include radar systems for their high power capabilities; antenna feed networks for low loss and phase accuracy and for use in test labs.


Waveguide products from Pasternack are available in WR-430, WR-284, WR-229, WR-187, WR-159, WR-137, WR-112, WR-102, WR-90, WR-75, WR-62, WR-51, WR-42, WR-34 and WR-28, which encompasses frequencies from 1.7 GHz to 40 GHz. With regards to a waveguide’s size, the term “WR-xxx” stands for “Waveguide Rectangular”; the number indicates the inner width waveguide dimensions in hundredths of an inch. Pasternack rectangular waveguides are constructed with aluminum bodies for its lightweight characteristics. We supply waveguide adapters, waveguide horns and waveguide terminations with either square or rectangular flanges.


Pasternack ISO 9001:2008 registered facilities in Irvine, CA ships all microwave and millimeter wave waveguides same day. Pasternack provides the largest inventory of RF, microwave and millimeter wave components available. Expert technical support and friendly customer service personnel can assist you with RF microwave and millimeter wave waveguide adapter, horn and termination needs. United Kingdom customers can contact Pasternack by e-mail at and or by calling +1-949-261-1920 from the UK).


For local technical support and to purchase waveguides in the United Kingdom,

please contact SpecTech Ltd. at (44) 01420 544789




TEL:  (44) 01420 544789

FAX: (44) 01420 544788

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