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77 GHz Stepped Lens With Sectorial Radiation Pattern as Primary Feed of a Lens Based CATR
- Source :
- IEEE Transactions on Antennas and Propagation, IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2009, 58 (1), pp.207-211. ⟨10.1109/TAP.2009.2036130⟩
- Publication Year :
- 2010
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2010.
-
Abstract
- International audience; We describe the design, fabrication and measurements of an axisymmetric dielectric lens, featuring a sectorial radiation pattern at 77 GHz. It will be used as the primary feed of a lens-based compact antenna test range (CATR). Due to symmetry of revolution, the sectorial lens profile can be designed in one dimension by using phase only control. The phase variation is echoed on the lens depth. The resulting stepped lens is simulated using France Telecom Orange Labs SRSRD software (¿in-house¿ software developed for dielectric axisymmetric radiating structures) and measured in an anechoic chamber at 77 GHz. Two lenses were fabricated with different materials: PVC and polyurethane, respectively. Good agreements were obtained between simulations and measurements. Less than 0.2 dB ripple in the central beam are obtained for the polyurethane lens although relatively high secondary lobes occur at 11°. Comparisons between the near field of a CATR illuminated by a small horn providing a uniform amplitude taper and the sectorial lens are conducted using numerical simulations. Results show that on-axis oscillations are reduced from 6 to 1 dB with the sectorial lens.
- Subjects :
- Materials science
bandwidth 77 GHz
Anechoic chamber
Dielectric measurements
Testing
Ripple
Rotational symmetry
Near and far field
02 engineering and technology
Dielectric
France Telecom Orange Labs SRSRD software
Antenna measurements
law.invention
Radiation pattern
numerical simulations
Fabrication
Optics
law
0202 electrical engineering, electronic engineering, information engineering
stepped lens
Electrical and Electronic Engineering
Lenses
business.industry
Telecommunication control
020208 electrical & electronic engineering
Optical design
lens antennas
Compact antenna test range (CATR)
020206 networking & telecommunications
millimetre wave antennas
axisymmetric dielectric lens
Antenna radiation patterns
dielectric lens
primary feed
Antenna feeds
Lens (optics)
phase control
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism
Amplitude
phase only control
Software measurement
antenna testing
sectorial radiation pattern
business
lens-based compact antenna test range
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 58
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi.dedup.....9f7466b2ad6e9ead3ab258aac89bfcfa