Abstract
The design of a WR10 waveguide coupling structure is presented. Electrically, it consists of an $E$ -plane (series) T-junction and a quarter-wave section. The resulting coupling factor is nearly constant over the entire ${W}$ -band. A milled split-block network and a wire-eroded metal plug-in, which is inserted into a groove in the split block, implement the coupling structure. This modular design makes the coupling factor easily configurable and enables the realization of quarter-wave section heights in the range of tens of micrometers. The plug-in is fabricated by wire erosion, a machining technique based on electrical discharge (spark machining). This enables precise adjustment of the height and length of the quarter-wave section (±2- $\mu \text{m}$ contour accuracy) and provides polishedlike surface quality ( $R_{\mathrm {z}} =2.1\,\,\mu \text{m}$ ). Hints for the manufacturing of the metal plug-in are given; full-wave simulations as well as measurements of ${W}$ -band prototype structures are evaluated, and the possibility of a postfabrication adjustment of the metal plug-ins is shown.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
