Microstrip reflectarray with QUAD-EMC element
- 6 June 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 53 (6) , 1993-1997
- https://doi.org/10.1109/tap.2005.848476
Abstract
This paper shows the performance of a reflect array using the QUAD-EMC patch as the radiating element. The phase adjustment is made at a sub-array level by tuning the length of each driven patch. Therefore, this new design uses fewer of the required phase shifter elements. The phase diagram provides the shared phase to each QUAD-EMC unit. The return loss plot of a radiating unit excited by the microstrip line is studied. The connection between the phase diagram and the return loss plot is also discussed. Experiments have shown that we can get comparable results with those obtained by controlling the phase on each individual element. Bandwidth of 23% with 1.5 dB gain variation can be achieved when built on an FR4 substrate. The cross polarization level may be improved since there is enough room to place the straight delay lines.Keywords
This publication has 14 references indexed in Scilit:
- Proximity-Coupled Microstrip ReflectarrayIEEE Transactions on Antennas and Propagation, 2004
- Designing a 161-element Ku-band microstrip reflectarray of variable size patches using an equivalent unit cell waveguide approachIEEE Transactions on Antennas and Propagation, 2003
- Reflectarray with variable slots on ground planeIEE Proceedings - Microwaves, Antennas and Propagation, 2003
- Analysis and design of a microstrip reflectarray using patches of variable sizePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Bandwidth study of microstrip reflectarray and a novel phased reflectarray conceptPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Design of two-layer printed reflectarrays using patches of variable sizeIEEE Transactions on Antennas and Propagation, 2001
- Design of millimeter wave microstrip reflectarraysIEEE Transactions on Antennas and Propagation, 1997
- New stacked microstrip antenna with large bandwidth and high gainIEE Proceedings - Microwaves, Antennas and Propagation, 1994
- Analysis of a reflectarray antenna using microstrip patches of variable sizeElectronics Letters, 1993
- Microstrip reflectarray antenna with offset feedElectronics Letters, 1992