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Interest for Wireless Power Transmission systems (WPTs) is increasing since they allow for power supplied devices involving low power consumption, located in unreachable area or needing expensive maintenance costs. In this paper we will present a rectenna design which is modeled and evaluated for an WPTs at 2.45GHz. The proposed rectenna structure consists of a 3×3 receiving antenna array with circular...
Wireless power transmission (WPT) is a promising technology to remotely energizing low power electronic devices in wireless communication circuits. In this paper we present an efficient rectenna (rectifier+antenna) design which is the crucial part in a microwave power transmission system. The developed design contains a new 3×3 antenna array having an operating frequency of 2.45 GHz with circular...
A 60GHz wideband circularly polarized E-shaped patch antenna array is designed using surface micromachining. The E-shaped patch is fully utilized to obtain good circular polarization performance. The antenna array is excited by four-way power divider. The four-way power divider is designed using rectangular micro-coaxial transmission line. The antenna array with the specified size of 12.5mm×5.7mm×0...
This study presents the use of contiguous aperture antenna radome as a method of generating circularly polarized signals from a linear polarization antenna which locates under the structure. The simulated results of the novel structure with single antenna and 2∗2 antennas array are demonstrated for L-band operation. It is shown that 3dB axial ratio bandwidth of 42 MHz and 32 MHz can be achieved with...
In this paper, the detailed antenna configuration as well as the feeding network design is presented in Section II. The antenna performance for linear polarization is shown in Section III, while the performance for circular polarization is given in Section IV. A novel polarization reconfigurable array antenna is proposed and fabricated. Measured results validate the performance improvement in port...
The paper describes how beamforming and monopulse techniques can be applied to an array of sequentially-fed, circular polarized, ultra-wideband array. By exploiting the same sequentially-fed antennas for beamforming and monopulse, we can achieve better target tracking, without increasing the antenna array size. The design equations of our proposed method, for the radar transceiver, are derived. To...
The results of research of internal and external characteristics of ultra wideband vibrator antenna arrays of circular and linear polarization with capacity elements in every vibrator are considered.
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