A multimodal dielectric waveguide-based monopulse radar at 160 GHz
| Autor: | Martin Geiger, Tobias Chaloun, Andre Durr, Christian Waldschmidt, Michael Fischer, Patrik Gruner |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Waveguide (electromagnetism)
Materials science Monopulse radar Millimeter waves Physics::Optics 02 engineering and technology Integrated circuit Dielectric dielectric waveguide law.invention Optics law Radar imaging 0202 electrical engineering electronic engineering information engineering DDC 620 / Engineering & allied operations Electrical and Electronic Engineering Monolithic microwave integrated circuit Radiation business.industry Millimeterwelle Multimodales System transition 020206 networking & telecommunications Condensed Matter Physics MMIC ddc:620 Antenna (radio) business flexible radar sensor Microwave |
| DOI: | 10.18725/oparu-33864 |
| Popis: | For highly integrated imaging systems above 100 GHz, the complexity and chip area increases signi���cantly with increasing number of channels. In addition, bulky dielectric lenses prevent applications in spatially restricted surroundings. The presented concept of an imaging monopulse radar with a mechanically ���exible front end reduces the required chip area and allows the antenna to be placed in any desired position apart from the sensitive electronics. The radar system is based on a two-channel 160 GHz microwave monolithic integrated circuit (MMIC) feeding a ���exible dielectric waveguide. Depending on the angle of the incidence signal, a sum mode (HE11 mode) and a difference mode (HE21 mode) are excited in the dielectric waveguide. MMIC and waveguide are connected by a self-aligning transition reducing the requirements for packaging accuracy. The required chip area of the transition is only 0.022���� with a spacing between the on-chip antennas of ��/4. The measured ambiguity-free region between ���18�� and 15�� is de���ned by the modi���ed elliptical lens antenna focusing in the E-plane only. A mechanical bending of the ���exible waveguide is possible down to a radius of at least 2 cm without affecting the angle estimation capability. acceptedVersion |
| Databáze: | OpenAIRE |
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