Wideband unbalanced waveguide power dividers and combiners
| DWPI Title: Unbalanced waveguide power divider-combiner for radar systems has input matching section having offset which causes magnitude of first output radio frequency (RF) energy to be different to magnitude of second output RF energy |
| Abstract: The various technologies presented herein relate to waveguide dividers and waveguide combiners for application in radar systems, wireless communications, etc. Waveguide dividers-combiners can be manufactured in accordance with custom dimensions, as well as in accordance with waveguide standards such that the input and output ports are of a defined dimension and have a common impedance. Various embodiments are presented which can incorporate one or more septum(s), one or more pairs of septums, an iris, an input matching region, a notch located on the input waveguide arm, waveguide arms having stepped transformer regions, etc. The various divider configurations presented herein can be utilized in high fractional bandwidth applications, e.g., a fractional bandwidth of about 30%, and RF applications in the Ka frequency band (e.g., 26.5-40 GHz). |
| Use: Unbalanced waveguide power divider-combiner for radar systems. Can also be used for wireless communications. |
| Advantage: Provides a lighter and smaller radar or antenna array systems. Reduces operational losses while maximizing operational bandwidth and frequency range since the operating frequency of the waveguide divider, and associated impedance, can be defined in accordance with a waveguide standard to enable incorporation of the waveguide divider into a system. Improves system sensitivity since the operational losses are reduced while maximizing operational bandwidth and frequency range. |
| Novelty: The unbalanced waveguide power divider-combiner has an input waveguide arm (111), a first output waveguide arm (121), a second output waveguide arm (131), a main septum (150), and an input matching section (140). The input matching section is located at a junction (J1) between the input waveguide arm, and the first and the second output waveguide arms. The input matching section is located offset to the centerline of an input port (110). The offset of the input matching section causes a magnitude of the first output RF energy to be different to a magnitude of the second output RF energy. |
| Filed: 7/28/2014 |
| Application Number: US14444843A |
| Tech ID: SD 12452.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Data from Derwent World Patents Index, provided by Clarivate All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |