Broadband Reflectarray Antenna with High Gain for X Band (8 to 12GHz) Application
Broadband Reflectarray Antenna with High Gain for X Band Applications
Keywords:
Broadband reflectarray, High Gain, X-Band, Compact antennasAbstract
In this paper high gain reflectarray antenna for broadband applications is proposed. The proposed design, based on a novel hexagonal unit cell shows a large reflection phase range of 1000° with smooth linear phase slope. A center horn fed 11 x 11 reflectarray antenna with the proposed unit cell is designed for X Band (8 to 12 GHz) applications. It is simulated for different f/D (focus point to largest dimension of antenna) ratios to evaluate its effect. For optimum results, only two f/D ratios 1.0 and 1.96 are chosen. The simulated results show that a wide operational bandwidth of 39.6% for 3dB gain dropping is obtained over the frequency band of 8 to 12 GHz which is much improved than the previously reported results. Simulations for the f/D ratio of 1.96 shows improvement in the aperture efficiency with 3 dB gain bandwidth of 29%. This single layer, low profile reflectarray antenna can be a useful candidate for high gain broadband applications.
References
J. Huang and J. A. Encinar. Reflectarray Antennas. John Wiley & Sons, Inc., USA (2008).
Javor, R. D., Wu, X. D., & Chang, K. Design and performance of a microstrip flat reflect‐array antenna. Microwave and Optical Technology Letters 7(7): 322-324 (1994).
Pozar, D. M. Bandwidth of reflectarrays. Electronics Letters 39(21): 1490-1491 (2003).
Encinar, J. A. Design of two-layer printed reflectarrays using patches of variable size. IEEE Transactions on Antennas and Propagation 49(10): 1403-1410 (2001).
Encinar, J. A., & Zornoza, J. A. Three-layer printed reflectarrays for contoured beam space applications. IEEE Transactions on Antennas and Propagation 52(5): 1138-1148 (2004).
Misran, N., Cahill, R., & Fusco, V. F. Design optimisation of ring elements for broadband reflectarray antennas. IEE Proceedings-Microwaves, Antennas and Propagation 150(6): 440-444 (2003).
Chaharmir, M. R., Shaker, J., Cuhaci, M., & Ittipiboon, A. Broadband reflectarray antenna with double cross loops. Electronics Letters 42(2): 65-66 (2006).
Bozzi, M., Germani, S., & Perregrini, L. Performance comparison of different element shapes used in printed reflectarrays. IEEE Antennas and Wireless Propagation Letters 2(1): 219-222 (2003).
Strassner, B., Han, C., & Chang, KCircularly polarized reflectarray with microstrip ring elements having variable rotation angles. IEEE Transactions on Antennas and Propagation 52(4): 1122-1125 (2004).
Gianvittorio, J. P., & Rahmat-Samii, Y. Reconfigurable patch antennas for steerable reflectarray applications. IEEE Transactions on Antennas and Propagation 54(5): 1388-1392 (2006).
Riel, M., & Laurin, J. J. Design of an electronically beam scanning reflectarray using aperture-coupled elements. IEEE Transactions on Antennas and Propagation 55(5): 1260-1266 (2007).
Hum, S. V., Okoniewski, M., & Davies, R. J. Modeling and design of electronically tunable reflectarrays. IEEE transactions on Antennas and Propagation 55(8): 2200-2210 (2007).
Zainud-Deen, S. H., Gaber, S. M., & Awadalla, K. H. Beam steering reflectarray using varactor diodes. Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC): 178181 (2012).
Karnati, K., Ebadi, S., & Gong, X. Effects of interelement spacing on mutual coupling and resonant properties in reflectarray unit cell design. Radio and Wireless Symposium (RWS): 83-86 (2012).
Zhang, K., Li, J., Wei, G., Fan, Y., Xu, J., & Gao, S. Design and optimization of broadband singlelayer reflectarray. Proceedings of the International Symposium on Antennas & Propagation (ISAP) 2: 32 1226-1229 (2013).
Ismail, M. Y., & Shukri, M. F. M. Study of Phasing Distribution Characteristics Of Reflectarray Antenna Using Different Resonant Elements. International Journal of Integrated Engineering 1(3): 47–52 (2009).
Ismail, M. Y., & Abbasi, M. I. Analysis of design optimization of bandwidth and loss performance of reflectarray antennas based on material properties. Modern Applied Science 4(1): 28 (2009).
Ismail, M. Y., Abbasi, M. I., Zain, A. F. M., Amin, M., & Abdullah, M. F. L. Characterization of loss and bandwidth performance of reflectarray antenna based on lumped components. Int. J. Electr. Electrocnics Informatics 2(2): 113-122 (2010).
Hum, S. V., Okoniewski, M., & Davies, R. J. An evolvable antenna platform based on reconfigurable reflectarrays. NASA/DoD Conference on Evolvable Hardware : 139-146 (2005).
Gosal, G., McNamara, D., & Yagoub, M. Transmitarray Antenna Design Using Forward and Inverse Neural Network Modeling. IEEE Antennas and Wireless Propagation Letters 15: 1483-1486 (2016).
Prado, D. R., Arrebola, M., Pino, M. R., & LasHeras, F. Improved Reflectarray Phase-Only Synthesis Using the Generalized Intersection Approach with Dielectric Frame and First Principle of Equivalence. International Journal of Antennas and Propagation 1: (2017).
Chen, X., Chen, Q., Feng, P., & Huang, K. Efficient design of the microstrip reflectarray antenna by optimizing the reflection phase curve. International Journal of Antennas and Propagation 1: 6–8 (2016).
Abbasi, M. I., & Ismail, M. Y. Reflection loss and bandwidth performance of Xband infinite reflectarrays: Simulations and measurements. Microwave and Optical Technology Letters 53(1): 77-80 (2011).
Ismail, M. Y., & Shukri, M. F. M. Study Of Phasing Distribution Characteristics Of Reflectarray Antenna Using Different Resonant Elements. International Journal of Integrated Engineering 1(3): 47–52 (2009).
Zhang, Y. S., Zhang, H., & Jin, J. A novel broadband reflect-array antenna with rectangle ring element for Ku-band application. IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Wireless Technology and Applications (IMWS) :1-4 (2012).
Arshad, M. K., Tahir, F. A., & Rashid, A. Design of a single layer reflectarray unit cells based on hexagonal ring for wideband operation. International Symposium Antennas and Propagation Society (APSURSI):815-816 (2014).
