Design and Realization of a Band Pass Filter at D-band Using Gap Waveguide Technology
- PDF / 1,157,962 Bytes
- 9 Pages / 439.642 x 666.49 pts Page_size
- 101 Downloads / 190 Views
Design and Realization of a Band Pass Filter at D-band Using Gap Waveguide Technology Jose Luis Vazquez-Roy1
· Eva Rajo-Iglesias1 · Giacomo Ulisse2 · Viktor Krozer2
Received: 11 June 2020 / Accepted: 6 July 2020 / © The Author(s) 2020
Abstract Gap waveguide technology is particularly attractive for the design of passive elements in mm-wave systems. Recently, the so-called zero-gap implementation has proved to be very robust to manufacturing tolerances, while at the same time keeping the low loss associated to the contactless standard gap waveguide. In this paper, a Chebyshev filter working at 145 GHz based on this idea and intended to be used in a wireless communication system is designed and optimized. A conventional milling technique has been used in its fabrication, and good measured results have been obtained in a single-pass process. Keywords Band-pass filter · Millimeter-wave filter · Bed of nails · Groove gap waveguide · Zero gap
1 Introduction Since the introduction of gap waveguide technology ten years ago [1], its use has been progressively extending to the design of components at increasingly higher Jose Luis Vazquez-Roy
[email protected] Eva Rajo-Iglesias [email protected] Giacomo Ulisse [email protected] Viktor Krozer [email protected] 1
Signal Theory and Communications Department, Universidad Carlos III de Madrid, Av. Universidad 30, 28030, Leganes, Madrid, Spain
2
Physics Institute, Johann Wolfgang Goethe-Universit¨at, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
International Journal of Infrared and Millimeter Waves
frequencies. The main advantage of this technology for enabling manufacturing in millimeter range frequencies is the contactless characteristic. In any of the different proposed versions of the technology [2], components are manufactured in two pieces that do not require to ensure good electrical contact when they are assembled together. Among the different versions of this technology, the groove version [3, 4] is the most suitable for the upper band of the millimeter range as it is the one with lower losses [2] and also because the conventional transitions for standard waveguides can be directly used to characterize the prototypes. In addition, the gap that was originally included in the first version of this technology can be suppressed as demonstrated in [5], consequently making the technology more robust to manufacturing tolerances. The designs made with this version are quite similar to designs made with conventional rectangular waveguides. Along these years, band-pass filters in groove gap waveguide technology have been proposed. Some initial designs were made in the microwave frequency range [6], and later on, designs in the Ka band [7] and the popular 60-GHz band [8] have been also presented. Some more examples of filters designed with this version of the technology can be found in [9], [10], and [11]. The manufacturing of the required bed of nails (BoN) to implement this technology is typically made by milling. This technique h
Data Loading...
