All Outputs (7)

A Reconfigurable Microstrip Patch Antenna With Switchable Liquid-Metal Ground Plane (2022)
Journal Article
Qu, Z., Kelly, J. R., Wang, Z., Alkaraki, S., & Gao, Y. (2023). A Reconfigurable Microstrip Patch Antenna With Switchable Liquid-Metal Ground Plane. IEEE Antennas and Wireless Propagation Letters, 22(5), 1045-1049. https://doi.org/10.1109/LAWP.2022.3231872

This letter presents a novel reconfigurable microstrip patch antenna that is reconfigured using liquid metal. The proposed antenna employs two approaches in unison to switch the direction of the main beam. Specifically, the antenna uses the parasitic... Read More about A Reconfigurable Microstrip Patch Antenna With Switchable Liquid-Metal Ground Plane.

A Wideband Circularly Polarized Antenna Based on Anisotropic Metamaterial (2022)
Journal Article
Lin, Q., Alkaraki, S., Wong, H., & Kelly, J. R. (2023). A Wideband Circularly Polarized Antenna Based on Anisotropic Metamaterial. IEEE Transactions on Antennas and Propagation, 71(2), 1254-1262. https://doi.org/10.1109/TAP.2022.3225157

This article presents a novel circularly polarized (CP) antenna based on an anisotropic metamaterial. The antenna is capable of performing linear-to-circular polarization conversion over a wideband of frequencies in the X-band (8-12 GHz). The propose... Read More about A Wideband Circularly Polarized Antenna Based on Anisotropic Metamaterial.

Techniques for Designing High Gain and Two‐Dimensional Beam Scanning Antennas for 5 G (2022)
Book Chapter
Mittra, R., Nasri, A., Arya, R. K., Chaudhary, P., Ketty, J. R., ALkaraki, S., & Borja, A. L. (2022). Techniques for Designing High Gain and Two‐Dimensional Beam Scanning Antennas for 5 G. In Y. Jay Guo, & R. W. Ziolkowski (Eds.), Antenna and Array Technologies for Future Wireless Ecosystems (43-82). Wiley-IEEE Press. https://doi.org/10.1002/9781119813910.ch2

This chapter presents a number of novel concepts for designing antenna arrays, which achieve high gain levels together with wide-angle scan capability. It begins with the Luneburg lens antenna, which supports beam scanning over a very wide angular ra... Read More about Techniques for Designing High Gain and Two‐Dimensional Beam Scanning Antennas for 5 G.

A Bio-degradable Textile-Based Graphene Antenna for the 5G Smart Wearables (2022)
Conference Proceeding
Thompson, O., Alkaraki, S., Abbasi, Q. H., Jilani, S. F., & Evans, D. A. (2022). A Bio-degradable Textile-Based Graphene Antenna for the 5G Smart Wearables. In 2022 16th European Conference on Antennas and Propagation (EuCAP) (1-4). https://doi.org/10.23919/eucap53622.2022.9769657

This paper proposes a bio-degradable antenna design well-suited for the 5 th generation (5G) wearables. This antenna has a graphene patterning instead of conventional metallization on a textile substrate to make it eco-friendly as it avoids copper co... Read More about A Bio-degradable Textile-Based Graphene Antenna for the 5G Smart Wearables.

3D Printed Slotted Waveguide Antenna Array for Millimeter-wave Communication Systems (2022)
Conference Proceeding
Khan, Z. U., Alkaraki, S., Abbasi, Q. H., Imran, M. A., Loh, T. H., & Alomainy, A. (2022). 3D Printed Slotted Waveguide Antenna Array for Millimeter-wave Communication Systems. In 2022 16th European Conference on Antennas and Propagation (EuCAP) (1-4). https://doi.org/10.23919/eucap53622.2022.9769598

This paper introduces a 3D printed slotted waveguide linear antenna array at 28 GHz. The proposed antenna offers the advantages of low fabrication cost and reduced weight compared to the metallic slotted waveguide antenna array. The proposed design c... Read More about 3D Printed Slotted Waveguide Antenna Array for Millimeter-wave Communication Systems.

Liquid Metal Enabled SIW Vias and RF Blocking Walls for Reconfigurable Antennas (2022)
Conference Proceeding
Alkaraki, S., Qu, Z., Kelly, J., Borja, A. L., Mittra, R., & Wang, Y. (2022). Liquid Metal Enabled SIW Vias and RF Blocking Walls for Reconfigurable Antennas. In 2022 16th European Conference on Antennas and Propagation (EuCAP) (1-5). https://doi.org/10.23919/eucap53622.2022.9769614

This paper presents a method for designing reconfigurable microwave devices based on substrate integrated waveguides (SIW) technology. The method involves forming walls from drill holes that can be filled with liquid metal to form vias. Furthermore,... Read More about Liquid Metal Enabled SIW Vias and RF Blocking Walls for Reconfigurable Antennas.

Phase Reconfiguration via SIW Structures Filled with Liquid Metal (2022)
Conference Proceeding
Alkaraki, S., Borja, A. L., Kelly, J., Jilani, S. F., Mittra, R., & Gao, Y. (2022). Phase Reconfiguration via SIW Structures Filled with Liquid Metal. In 2022 16th European Conference on Antennas and Propagation (EuCAP) (1-5). https://doi.org/10.23919/eucap53622.2022.9769417

This paper presents substrate integrated waveguide (SIW) phase shifter that can be reconfigured using liquid metal. The phase shifter is developed to be used for antenna applications. This digital phase shifter incorporates a series of holes which ca... Read More about Phase Reconfiguration via SIW Structures Filled with Liquid Metal.