24-GHz LTCC Fractal Antenna Array SoP With Integrated Fresnel Lens
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab
Physical Science and Engineering (PSE) Division
Online Publication Date2011-07-20
Print Publication Date2011
Permanent link to this recordhttp://hdl.handle.net/10754/246371
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AbstractA 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.
CitationGhaffar FA, Khalid MU, Salama KN, Shamim A (2011) 24-GHz LTCC Fractal Antenna Array SoP With Integrated Fresnel Lens. Antennas Wirel Propag Lett 10: 705-708. doi:10.1109/LAWP.2011.2161600.