Tuning the higher to lower order resonance frequency ratio and implementing the tunable THz MIMO/self-diplexing antenna

Pawar, 2013, Terahertz technology and its applications, Drug Invent. Today., 5, 157, 10.1016/j.dit.2013.03.009 Mumtaz, 2017, Terahertz communication for vehicular networks, IEEE Trans. Veh. Technol., 66, 5617, 10.1109/TVT.2017.2712878 Son, 2019, Potential clinical applications of terahertz radiation, J. Appl. Phys., 125, 10.1063/1.5080205 Engineering, 2020 Nejat, 2019, Ultrasensitive THz refractive index sensor based on a controllable perfect MTM absorber, IEEE Sens. J., 19, 10490, 10.1109/JSEN.2019.2931057 Akyildiz, 2014, Terahertz band: Next frontier for wireless communications, Phys. Commun., 12, 16, 10.1016/j.phycom.2014.01.006 Varshney, 2020, Tunable terahertz dielectric resonator antenna, Silicon Varshney, 2020, Reconfigurable graphene antenna for THz applications: a mode conversion approach, Nanotechnology, 31, 10.1088/1361-6528/ab60cc Varshney, 2020, Tunable circularly polarized graphene antenna for THz applications, Optik (Stuttg)., 223 Vishwanath B.C. Sahana, 2022, Tunable terahertz dual-band circularly polarized dielectric resonator antenna, Optik (Stuttg)., 253 Vishwanath, 2021, Tunable terahertz circularly polarized dielectric resonator antenna with the higher order modes, Silicon, 73 Gupta, 2021, Tunable terahertz circularly polarized dielectric resonator antenna, Optik (Stuttg)., 239 Farman Ali, 2021, Graphene-based tunable terahertz self-diplexing/MIMO-STAR antenna with pattern diversity, Nano Commun. Netw., 30 Vasu Babu, 2022, A micro-scaled graphene-based tree-shaped wideband printed MIMO antenna for terahertz applications, J. Comput. Electr., 10.1007/s10825-021-01831-3 Das, 2021, Analysis of tunable THz antennas integrated with polarization insensitive frequency selective surfaces, Opt. Quantum Electron., 53, 1, 10.1007/s11082-021-03320-0 Lee, 2012, Microstrip patch antennasbasic characteristics and some recent advances, Proc. IEEE., 100, 2169, 10.1109/JPROC.2012.2183829 D.M. Pozar, Microstrip Antennas, 80, 1992. James, 2014 Kiani, 2020, Polarization controling approach in reconfigurable microstrip graphene-based antenna, Optik (Stuttg)., 203 Naghdehforushha, 2019, An improved method to null-fill H-plane radiation pattern of graphene patch THz antenna utilizing branch feeding microstrip line, Optik (Stuttg)., 181, 21, 10.1016/j.ijleo.2018.11.155 Bashirpour, 2019, Improvement of terahertz photoconductive antenna using optical antenna array of ZnO nanorods, Sci. Rep., 9, 1, 10.1038/s41598-019-38820-3 Abadal, 2019, Graphene-based antenna design for communications in the terahertz band, Nanoscale Netw. Commun. Handb., 25, 10.1201/9780429163043-2 Bala, 2016, Characterization of graphene for performance enhancement of patch antenna in THz region, Optik (Stuttg)., 127, 2089, 10.1016/j.ijleo.2015.11.029 Hosseininejad, 2018, Reconfigurable THz plasmonic antenna based on few-layer graphene with high radiation efficiency, Nanomaterials, 8, 1, 10.3390/nano8080577 Hosseininejad, 2019, Digital metasurface based on graphene: An application to beam steering in terahertz plasmonic antennas, IEEE Trans. Nanotechnol., 18, 734, 10.1109/TNANO.2019.2923727 Abadal, 2013, Graphene-enabled wireless communication for massive multicore architectures, IEEE Commun. Mag., 51, 137, 10.1109/MCOM.2013.6658665 Kiani, 2020, Polarization controlling plan in graphene-based reconfigurable microstrip patch antenna, Optik (Stuttg)., 10.1016/j.ijleo.2019.163942 Sharma, 2020, Obtaining the tunable band-notch in ultrawideband THz antenna using graphene nanoribbons, Opt. Eng., 59, 10.1117/1.OE.59.4.047103 Das, 2022, Gain enhancement of dual-band terahertz antenna using reflection-based frequency selective surfaces, Opt. Quantum Electron., 54, 1, 10.1007/s11082-022-03548-4 Moradi, 2022, An efficient graphene-based reconfigurable terahertz ring antenna design, AEU - Int. J. Electron. Commun., 149, 10.1016/j.aeue.2022.154177 Varshney, 2017, Dual-band fan-blade-shaped circularly polarised dielectric resonator antenna, IET Microwaves, Antennas Propag., 11, 1868, 10.1049/iet-map.2017.0244 Srivastava, 2021, Compact ultra-wideband monopole antenna with tunable notch bandwidth/frequency ratio, Frequenz, 1 Chen, 2011, Dual-band circularly-polarized CPW-fed slot antenna with a small frequency ratio and wide bandwidths, IEEE Trans. Antennas Propag., 59, 1379, 10.1109/TAP.2011.2109347 Bao, 2007, Dual-frequency circularly-polarized patch antenna with compact size and small frequency ratio, IEEE Trans. Antennas Propag., 55, 2104, 10.1109/TAP.2007.900271 Chen, 2016, Dual-band circularly polarized shared-aperture array with wideband and small frequency ratio, 1 Yang, 2018, A single-layer dual-frequency shared-aperture SIW slot antenna array with a small frequency ratio, IEEE Antennas Wirel. Propag. Lett., 17, 1048, 10.1109/LAWP.2018.2830760 Nasimuddin Z.N. Chen, 2010, Dual-band circularly polarized -shaped slotted patch antenna with a small frequency-ratio, IEEE Trans. Antennas Propag., 58, 2112, 10.1109/TAP.2010.2046851 Zuo, 2021, Dual-band antenna with large frequency ratio based on dual-mode transmission line, IEEE Antennas Wirel. Propag. Lett., 1225, 1 Geim, 2007, The rise of graphene, Nature Mater., 6, 183, 10.1038/nmat1849 Bianco, 2013, All in the graphene family - A recommended nomenclature for two-dimensional carbon materials, Carbon N. Y., 65, 1, 10.1016/j.carbon.2013.08.038 Perim, 2015, Burning graphene layer-by-layer, Sci. Rep., 5, 1 Varshney, 2019, Proximity-coupled two-port multi-input-multi-output graphene antenna with pattern diversity for THz applications, Nano Commun. Netw., 21, 10.1016/j.nancom.2019.05.003 Das, 2021, Fractal loaded planar Super Wide Band four element MIMO antenna for THz applications, Nano Commun. Netw., 30, 10.1016/j.nancom.2021.100374 Serfontein, 2021, Easily extendable four port MIMO antenna with improved isolation and wide bandwidth for THz applications, Optik (Stuttg). Malhat, 2022, Reconfigurable circularly polarized hemispherical DRA using plasmonic graphene strips for MIMO communications, Plasmonics Gotra, 2019, Super-wideband multi-input–multi-output dielectric resonator antenna, IET Microw. Antennas Propag., 14, 21, 10.1049/iet-map.2018.6112 Suñé, 2008 Balanis, 1997 Soh, 2007, Design, modeling, and performance comparison of feeding techniques for a microstrip patch antenna, J. Teknol., 47 Tai, 2018, Direct growth of graphene on silicon by metal-free chemical vapor deposition, Nano-Micro Lett., 10, 1, 10.1007/s40820-017-0173-1 Hanson, 2008, Dyadic green’s functions for an anisotropic, non-local model of biased graphene, IEEE Trans. Antennas Propag., 56, 747, 10.1109/TAP.2008.917005 Vishwanath, 2022, Implementing the single/ multiport tunable terahertz circularly polarized dielectric resonator antenna, Nano Commun. Netw., 32–33 Varshney, 2019, Proximity-coupled graphene-patch-based tunable single-/dual-band notch filter for THz applications, J. Electr. Mater. Springer., 48, 4818, 10.1007/s11664-019-07274-8 De Souza, 2020, Higher order mode attenuation in microstrip patch antenna with DGS h filter specification from 5 to 10 GHz range, J. Microwaves, Optoelectron. Electromagn. Appl., 19, 214, 10.1590/2179-10742020v19i2823 Chang, 2009, Bandwidth broadening of dielectric resonator antenna by merging adjacent bands, IEEE Trans. Antennas Propag., 57, 205 Varshney, 2020, Circularly polarized two-port MIMO dielectric resonator antenna, Prog. Electromagn. Res. M., 91, 19, 10.2528/PIERM20011003