Bull’s-eye antenna with circular polarization at millimeter waves based on ridge gap waveguide technology
| Autor: | Miguel Beruete, Dayan Perez-Quintana, Inigo Ederra |
|---|---|
| Přispěvatelé: | Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación, Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Cities, Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Waveguide (electromagnetism) Circular polarization (CP) Axial ratio business.industry Bull’s-eye (BE) antenna Millimeter waves 020206 networking & telecommunications 02 engineering and technology Concentric Polarization (waves) Ridge (differential geometry) Optics 0202 electrical engineering electronic engineering information engineering Ridge gap waveguide (RGW) technology Millimeter Electrical and Electronic Engineering Antenna (radio) business Circular polarization |
| Zdroj: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname |
| Popis: | In this communication, a Bull’s-Eye (BE) antenna with circular polarization (CP) based on ridge gap waveguide (RGW) technology is numerically and experimentally demonstrated. The structure is excited from the bottom with a standard WR-15 waveguide (V -band) coupled through a step transition to a ridgeline that ends in two orthogonal arms of different lengths to generate CP. Radiation is coupled to the top plate by a central diamond slot surrounded by the BE structure, which consists of four concentric periodic corrugations around the slot. Simulations and experimental results are in good agreement, with axial ratio below 1 dB at the operation frequency and peak gain of 18.4 dB. The antenna has right-handed CP (RHCP) with polarization discrimination of more than 30 dB. This work was supported by the Ministerio de Ciencia, Innovación y Universidades under Grants RTI2018-094475-B-I00 (MCIU/AEI/FEDER, UE), TEC2016-76997-C3-1-R. and PID2019-109984RB-C43. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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