TY - JOUR
T1 - Micromachined patch antennas
AU - Papapolymerou, Loannis
AU - Drayton, Rhonda Franklin
AU - Katehi, Linda P B
PY - 1998/12/1
Y1 - 1998/12/1
N2 - This paper presents the use of selective lateral etching based on niicrornachining techniques to enhance the performance of rectangular microstrip patch antennas printed on high-index wafers such as silicon, GaAs, and InP. Micromachined patch antennas on Si substrates have shown superior performance over conventional designs where the bandwidth and the efficiency have increased by as much as 64% and 28%, respectively. In this work, the silicon material is removed laterally underneath the patch antenna to produce a cavity that consists of a mixture of air and substrate with equal or unequal thicknesses. Characterization of the micromachined patch antenna is presented herein and includes a discussion on the bandwidth improvements, radiation patterns, and efficiency of the patch. In addition, antenna placement on the reduced index cavity with respect to the high-index substrate is described to achieve efficiency improvements over conventional patch antennas.
AB - This paper presents the use of selective lateral etching based on niicrornachining techniques to enhance the performance of rectangular microstrip patch antennas printed on high-index wafers such as silicon, GaAs, and InP. Micromachined patch antennas on Si substrates have shown superior performance over conventional designs where the bandwidth and the efficiency have increased by as much as 64% and 28%, respectively. In this work, the silicon material is removed laterally underneath the patch antenna to produce a cavity that consists of a mixture of air and substrate with equal or unequal thicknesses. Characterization of the micromachined patch antenna is presented herein and includes a discussion on the bandwidth improvements, radiation patterns, and efficiency of the patch. In addition, antenna placement on the reduced index cavity with respect to the high-index substrate is described to achieve efficiency improvements over conventional patch antennas.
KW - Microstrip antennas
UR - http://www.scopus.com/inward/record.url?scp=0032002207&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032002207&partnerID=8YFLogxK
U2 - 10.1109/8.660973
DO - 10.1109/8.660973
M3 - Article
AN - SCOPUS:0032002207
VL - 46
SP - 275
EP - 283
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 2
ER -