Rectangular Microstirp Patch Antenna Design at THz Frequency for Short Distance Wireless Communication Systems

Abstract

In this paper, we have presented the simulation results of a rectangular microstrip patch antenna at terahertz (THz) frequency ranging from 0.7 to 0.85 THz. THz electromagnetic wave can permit more densely packed communication links with increased security of communication transmission. The simulated results such as gain, radiation efficiency and 10 dB impedance bandwidth of rectangular microstrip patch antenna at THz frequencies without shorting post configuration are 3.497 dB, 55.71% and 17.76%, respectively, whereas with shorting post configuration, corresponding parameters are 3.502 dB, 55.88% and 17.27%. The simulation has been performed by using CST Microwave Studio, which is a commercially available electromagnetic simulator based on the method of finite difference time domain technique.Keywords THz electromagnetic spectrum . Microstrip patch antenna . Bandwidth . Photo-conductive antenna and microstrip-line.

Dual-band rectangular microstrip patch antenna at terahertz frequency for surveillance system

“…Apart from the possible future application in the wireless communication/surveillance system already discussed above, the comparison of electrical performance of the proposed antenna with respect to [22,23] shows significance improvement in the gain, directivity and the radiation efficiency. This antenna also excludes from the shorting post technique as reported in [23], which is the major fabrication challenge at the terahertz frequency. Future research will continue to push forward on all fronts, particularly in terahertz imaging system to increase the speed, bandwidth and resolution.…”

“…To enhance the performance, multilayer substrate antennas have been studied in detail by [18][19][20][21], but they all have again concentrated to the lower frequency (microwave region) only. A simple single frequency THz rectangular patch antenna was reported [22,23], which suffer from the poor radiation efficiency and the gain. Moreover, the multi-frequency antenna would be more versatile in application on the place of single frequency antenna at terahertz frequency.…”

Reliable and Fast Future Communications with Millimeter Waves: A Review

“…Certainly, transmission using mmW communication is a distinguish enabling technology for the coming 5G multi-tier large-scale antenna system, where high beamforming gains could be achieved within small areas using mmW antennas composed of small size with dense antenna packaging [13]. Many of the researchers are working on GHz and THz frequencies from past few years [14,15]. Keeping this in consideration, several antenna designs exploitation and practical execution feasibility remained exposed and their solution would perhaps bring drastically change towards our understanding of future mmW radio communications.…”

The Performance Improvement of THZ Antenna via Modeling and Characterization of Doped Graphene

“…Nanomaterials such as graphene and Carbon Nanotubes (CNTs) are suitable options to overcome metallic losses in these applications. For example, the resistivity of a single wall (SW) CNT is lower than that of a strand gold with the same diameter, making it a major motivating factor in utilizing CNTs for fabricating nanoantennas [10,11]. However, its high (20 kΩ to 10 MΩ) impedance complicates matching between CNT RF devices and other conventional 50 Ω RF devices such as metal multilayers on dielectrics or metal semiconductor heterostructures.…”

“…For example, a conformal microstrip patch consisting of two parallel electric conductors separated by a dielectric material was proposed in [17], fabricated by thin film deposition and nanolithography techniques [18]. Besides solving the mismatch problems in the THz regime [4], this basic topology is also widely used due to its miniaturization ability and conformality [10]. Meanwhile, an analysis on the surface conductivity of the graphene sheet and the design of a GNR-based patch was discussed in [19].…”