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A novel 24-GHz mixed low-temperature co-fired ceramic (LTCC) tape based system-on-package (SoP) is presented, which incorporates a fractal antenna array with an integrated grooved Fresnel lens. The four-element fractal array employs a relatively low dielectric constant substrate (CT707, εr = 6.4), whereas the lens has been realized on a high-dielectric-constant superstrate (CT765, εr = 68.7 ). The two (substrate and superstrate) are integrated through four corner posts to realize the required air gap (focal distance). The fractal array alone provides a measured gain of 8.9 dBi. Simulations predict that integration of this array with the lens increases the gain by 6 dB. Measurements reveal that the design is susceptible to LTCC fabrication tolerances. In addition to high gain, the SoP provides a bandwidth of 8%. The high performance and compact size (24 × 24 × 4.8 mm3 ) of the design makes it highly suitable for emerging wireless applications such as automotive radar front end.
Published in:
Antennas and Wireless Propagation Letters, IEEE
(Volume:10
)
Date of Publication: 2011
- Page(s):
- 705 - 708
- ISSN :
- 1536-1225
- INSPEC Accession Number:
- 12114708
- Digital Object Identifier :
- 10.1109/LAWP.2011.2161600
- Product Type:
- Journals & Magazines
- Date of Publication :
- 14 July 2011
- Date of Current Version :
- 25 July 2011
- Issue Date :
- 2011
- Sponsored by :
- IEEE Antennas and Propagation Society
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