We propose and demonstrate a novel photonic-plasmonic antenna capable of confining electromagnetic radiation at several mid-infrared wavelengths to a single sub-wavelength spot. The structure relies on the coupling between the localized surface plasmon resonance of a bow-tie nanoantenna with the photonic modes of surrounding multi-periodic particle arrays. Far-field measurements of the transmis...

This paper presents a study on bow tie antenna with U-shape slot, designated for the Wireless applications. It is designed to work on a thick substrate (h = 1.6mm) with a high dielectric constant ( = 4.4) operating at three frequencies (2.4, 4 and 5GHz). Two U-shaped slots are introduced in the both sides of bow tie antenna in order to achieve a very low return loss at these frequencies. The an...

Present paper describes application of a computer intensive methodology to evaluate antenna susceptibility to random physical damage for a Dipole and a Bow-tie antenna. For each randomly generated damage pattern antenna parameters are simulated and statistical comparison is performed. Computer intensive statistical methods like the Bootstrap used for the post processing make fewer initial assum...

Finite-difference time-domain simulation results in bow-tie InGaAs diodes are presented. Dependences of electric field amplitude on frequency were investigated for various device shapes and sizes. It was shown that two metallized parts of the bow-tie type detector act as the separate antennas causing thus the experimentally observed fast sensitivity reduction at 1.63, 1.83, and 2.51 THz frequen...

A comprehensive study of electromagnetic waves underwater propagation for a wireless sensor network is introduced in this paper. A mathematical model for the path loss due to attenuation of electromagnetic waves propagates in sea and pure water is given. Reflection from the air-water and water-sand interfaces as a function of distance between sensors and water depth is also introduced. A high g...

The crowding of wireless band has necessitated the development of multiband and wideband wireless antennas. Because of the self similar characteristics, fractal concepts have emerged as a design methodology for compact multiband antennas. A Koch-like fractal curve is proposed to transform ultra-wideband (UWB) bow-tie into so called Koch-like sided fractal bow-tie dipole. A small isosceles trian...

To allow fast communication—at several Gb/s—of multimedia content among processors and memories in a multi-processor system-on-chip, a new approach is emerging in literature: Wireless Network-on-Chip (WiNoC). With reference to this scenario, this paper presents the design of the key element of the WiNoC: the antenna. Specifically, a bow-tie antenna is proposed, which operates at mm-waves and ca...

The paper describes the design and the experimental verification of three types of wideband antennas. Attention is turned to the bow-tie antenna, the Vivaldi antenna and the spiral antenna designed for the operation at millimeter waves. Bandwidth, input impedance, gain, and directivity pattern are the investigated parameters. Antennas are compared considering computer simulations in CST Microwa...

In this paper, we propose a paper-based pattern switchable antenna system using inkjet-printing technology for bi-direction sensor applications. The proposed antenna system is composed of two directional bow-tie antennas and a switching network. The switching network consists of a single-pole-double-throw (SPDT) switch and a balun element. A double-sided parallel-strip line (DSPSL) is employed ...