New Directional Couplers for Multimode Circular Waveguides Applied to Intense Pulsed Microwave Systems
Abstract
Three new types of directional couplers are described for use in overmoded circular waveguide operating in the TM(0 1) mode. The types are (1) circular/rectangular waveguide multihole couplers, (2) circular waveguide/coaxial multihole couplers, and (3) circular waveguide loop couplers. These directional couplers are designed to diagnose intense pulsed microwave systems in the frequency range 3-18 GHz. Coupling coefficients vary between 50 and 70 dB with directivities between 13 and 20 dB. These devices have been used to measure the output powers of relativistic magnetrons and backward wave oscillators (BWOs) in the power range 100 to 300 MW.
- Publication:
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IEEE Transactions on Nuclear Science
- Pub Date:
- October 1985
- DOI:
- Bibcode:
- 1985ITNS...32.2921E
- Keywords:
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- Directional Couplers;
- Microwave Coupling;
- Pulsed Radiation;
- Waveguides;
- Calibrating;
- Design Analysis;
- Propagation Modes;
- Electronics and Electrical Engineering