By Balamati Choudhury, Bhavani Danana, Rakesh Mohan Jha

This booklet specializes in high-gain antennas within the terahertz spectrum and their optimization. The terahertz spectrum is an unallocated EM spectrum, that is being explored for a few functions, specially to satisfy expanding calls for of excessive information charges for instant area communications. house conversation platforms utilizing the terahertz spectrum can unravel the issues of restricted bandwidth of current instant communications with out radio-frequency interference. This e-book describes layout of such high-gain antennas and their functionality enhancement utilizing photonic band hole (PBG) substrates. additional, optimization of antenna versions utilizing evolutionary set of rules established computational engine has been incorporated. The optimized high-performance compact antenna can be utilized for varied instant purposes, comparable to inter-orbital communications and on-vehicle satellite tv for pc communications.

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Whites. 2015. The puck antenna: a compact design with wideband, high-gain operation. IEEE Transactions on Antennas and Propagation 63(4): 1868–1872. P. Y. Kazi, 2014. Enhancement of return loss and efficiency of microstrip slotted patch antenna using line shape defected ground structure. International Journal on Recent and Innovation Trends in Computing and Communication 2: 343–346. ISSN: 2321–8169. , I. Brener, J. Lopata, J. Wynn, L. Pfeiffer, and J. Federici. 1997. Design and performance of singular electric field terahertz photoconducting antennas.

7 THz. The dielectric constant and the thickness of the substrate are considered as 3 and 10 μm respectively. The thickness of patch and microstrip feed is 5 μm. Hence the dimensions of the microstrip patch antenna are calculated using the design equations Eqs. (2)–(10) as given above and the obtained values are tabulated in Table 1. The rectangular microstrip patch antenna is designed using planar technology as it offers higher integration possibility (Jha and Singh 2010). The microstrip patch antenna model is designed using the dimensions mentioned in Table 1 and simulated using FEM-based software in-conjunction with MATLAB interfacing.

Javadi, P. Siege1 and 1. Mehdi. 2004. Solid-state terahertz sources for space applications. In Joint 29th International Conference on Infrared and Millimeter Waves and 12’ International Conference on Terahertz Electronics, pp. 767–768. , M. Tani, and K. Sakai. 2000. Carrier dynamics and terahertz radiation in photoconductive antennas. Japanese Journal of Applied Physics 39: 96–100. , Z. Raida, and H. L. Hartnagel, 2013. Design of circularly polarized terahertz antenna with interdigital electrode photomixer.

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