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Conference papers
Multilayer SIW Rotman lens antenna in 24 GHz band
Abstract : We introduce here a multilayer Rotman lens antenna in Substrate Integrated Waveguide (SIW) technology. The lens is realized with two stacked substrate layers, coupled thanks to a new broadband transition quite insensitive to the incident angle of the incoming wave. The lens is connected to an array of slotted waveguides, centrally fed, in order to enhance the reflection and gain bandwidths. To validate the proposed concepts an antenna prototype has been manufactured in the 24-GHz band using Printed Circuit board (PCB) process. Very good scanning performance over an angular sector of ±33° has been obtained with side lobe levels lower than -10dB over the entire field of view. We also show that the true time delay characteristic of the Rotman lens is preserved even if the lens is realized in two stacked layers. © 2016 European Association of Antennas and Propagation.
Keywords :
Antenna arrays
Antenna lobes
Microwave antennas
Multibeam antennas
Multilayers
Printed circuit boards
Printed circuits
Rectangular waveguides
Scanning antennas
Slot antennas
Substrate integrated waveguides
Time delay
Waveguides
Broadband transition
Incident angles
Printed circuit boards (PCB)
Rotman lens
Slotted waveguide array
Slotted waveguides
Substrate integrated waveguide technologies
Substrate layers
Lens antennas
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01368156
Contributor : Laurent Jonchère <>
Submitted on : Monday, September 19, 2016 - 10:23:29 AM
Last modification on : Monday, October 5, 2020 - 9:50:24 AM
Contributor : Laurent Jonchère <>
Submitted on : Monday, September 19, 2016 - 10:23:29 AM
Last modification on : Monday, October 5, 2020 - 9:50:24 AM