Design of bowtie-slot on-chip antenna backed with E-shaped FSS at 94 GHz

To meet the growing demand for miniaturization and compactness, antennas are being designed over CMOS chips. On-chip antennas (OCAs) suffer from low gains and radiation efficiency due to high dielectric constant and low resistivity of Silicon. Artificial magnetic conductors (AMC) are used in OCAs to increase gain and reduce power confinement in the substrate. In this paper, a bowtie slot antenna is presented whose gain is enhanced by an array of back-to-back E-shaped (B2BE) frequency selective surface (FSS). The operating frequency of antenna is 94 GHz where its gain is boosted from -2.71 dBi to -1.94 dBi. Designed in a standard IHP 130nm BiCMOS process without any extra post-processing step, the S11 is below -10dB from 90 GHz to 105 GHz with an antenna size of 710×310×650 μm3.

[1]  Kaixue Ma,et al.  A 60-GHz on-chip antenna over an AMC using a standard 65-nm CMOS technology , 2014, 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS).

[2]  Xiaodai Dong,et al.  A wideband Artificial Magnetic Conductor Yagi antenna for 60-GHz standard 0.13-µm CMOS applications , 2014, 2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT).

[3]  Esmat A. Abdallah,et al.  Antenna Designs with Electromagnetic Band Gap Structures , 2012 .

[4]  Xiao Ping Hu,et al.  Millimeter Wave on Chip Antenna Using Dogbone Shape Artificial Magnetic Conductor , 2013 .

[5]  P. Heydari,et al.  Investigation of a Wideband BiCMOS Fully On-Chip $W$-Band Bowtie Slot Antenna , 2013, IEEE Antennas and Wireless Propagation Letters.

[6]  Y. Xiong,et al.  60-GHz AMC-Based Circularly Polarized On-Chip Antenna Using Standard 0.18-$\mu$ m CMOS Technology , 2012, IEEE Transactions on Antennas and Propagation.

[7]  W. Hong,et al.  Silicon-based on-chip antenna design for millimeter-wave/THz applications , 2011, 2011 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS).

[8]  K. Yoshida,et al.  60 GHz triangular monopole Antenna-on-Chip over an Artificial Magnetic Conductor , 2012, 2012 6th European Conference on Antennas and Propagation (EUCAP).

[9]  Atif Shamim,et al.  The Last Barrier , 2013 .

[10]  Filippo Capolino,et al.  Design of a CMOS On-Chip Slot Antenna With Extremely Flat Cavity at 140 GHz , 2011, IEEE Antennas and Wireless Propagation Letters.

[11]  A. Shamim,et al.  The last barrier: on-chip antennas , 2013, IEEE Microwave Magazine.

[12]  P. Heydari,et al.  A 94-GHz Extremely Thin Metasurface-Based BiCMOS On-Chip Antenna , 2014, IEEE Transactions on Antennas and Propagation.