in this paper a new uwb textile slot antenna has been designed with high precision. this work aimed to makecloser steps towards real wearability by investigating the possibilities of designing wearable uwb antenna wheretextile materials are used for the substrate as well as the conducting parts of the designed antenna. the antenna iscomposed of three textile layers: the top and bottom are condu...

In this paper, a new method for radar cross section reduction of a monopole antenna is proposed. In this method, a plasma helix like fluorescent bulbs is placed around the antenna element. The selected plasma parameter for this medium acts as an absorber without disturbing the antenna performance. The simulations show that radar cross section of simulated antenna is reduced in a wide frequency ...

The spectral response of a low-temperature-grown GaAs photoconductive ~PC! antenna is compared with that of the electro-optic sampling technique for the frequency region up to 40 THz. The spectral response of the PC antenna for broadband detection is found to be determined by the temporal profile of the number of photocarriers injected by ultrashort optical gate pulses. © 2001 American Institut...

in this article, the linear array (with 20 elements in the horizontal orientation) of microstrip antenna is examined with horizontal polarization. the set includes three microstrip substrates. there is a power network in two lower substrates and microstrip patches in the upper substrate. excitation of patches has been done as coupled through the power network in two lower substrates. using the ...

A novel method to generate optical beams using on-chip silicon nanophotonic antenna arrays with engineered phase and amplitude is demonstrated. An 8×8 nanophotonic phased array to generate and manipulate Gaussian beams is shown. ©2013 Optical Society of America OCIS codes: (130.3120) Integrated Optics Devices; (280.5110) Phased-array Radar

Tunable optical true-time-delay modules based on highly dispersive photonic crystal fibers were demonstrated to provide continuous radio frequency squint-free beam scanning for X-band phased array antenna systems. © 2006 Optical Society of America OCIS codes: (060.2310) Fiber Optics; (280.5110) Phased-Array Radar