نتایج جستجو برای: electronically steerable parasitic array radiator espar

تعداد نتایج: 176445  

2012
R. Baggen S. Vaccaro D. Llorens del Río J. Padilla R. Torres Sánchez

This article presents the prototype of an electronically steerable receive-only array antenna realised within the ESA-project NATALIA. This project is funded under contract number 18612/04/NL/US. The antenna is conceived for the reception of mobile satellite services in Ku-band and its design targets the market of automotive applications. The design of the prototype is based on an innovative po...

2011
V. I. Barousis A. G. Kanatas

The beamspace domain of parasitic antenna arrays is explored in this paper, providing the aerial degrees of freedom available for use in Multiple Input-Multiple Output (MIMO) systems. The beamspace representation allows for the design of an alternative MIMO architecture based on single radio-frequency (RF) chains, and facilitates the inclusion of MIMO transceivers in devices with strict size li...

2007
Chen SUN Makoto Taromaru Hiroyoshi Yamada Takashi Ohira

Modern wireless communications systems require improvement in capacity and data transmission speed. Adaptive array antennas separate spatially a desired wave from interference waves by controlling their radiation or beam pattern directivity. A digital beamforming (DBF) array performs adaptive beamforming by digital signal processing. However, the circuit scale, number of RF channels and power c...

Journal: :Applied Computational Electromagnetics Society Journal 2022

A new design of dual-band antenna array with 3D-coverage beam steering characteristic for millimeter-wave (MM-Wave) communications is proposed in this manuscript. The covers frequency bands 18 GHz and 28 GHz. Its configuration contains three subarrays patch radiators along the edge area smart phone printed circuit board (PCB). Each sub-array eight elements antennas C-shaped slots. resonant freq...

2009
William Mark Dorsey Amir I. Zaghloul Gary S. Brown William A. Davis Scott F. Midkiff Pamela Marie Murray-Tuite

Dual-band antenna elements that support dual-polarization provide ideal performance for applications including space-based platforms, multifunction radar, wireless communications, and personal electronic devices. In many communications and radar applications, a dual-band, dual-polarization antenna array becomes a requirement in order to produce an electronically steerable, directional beam capa...

Journal: :The Journal of Korean Institute of Electromagnetic Engineering and Science 2009

Journal: :IEEE Access 2023

A low-profile and broad steerable patch array antenna is presented. The improvement of the multi-directional functions from broadside very limited for antenna. In this work, number directional beams enhanced by 40% using a novel approach, inter-parasitic element expansion technique adopted only four PIN diode switches. Results in simulation measurement have verified that parasitic capable -of g...

2000
Jonathan Foote Don Kimber

This paper describes computationally and materially inexpensive methods for panoramic video imaging. Digitally combining images from an array of inexpensive video cameras results in a wide-field panoramic camera, from inexpensive off-the-shelfhardware. We present methods that both correct lens distortion and seamlessly merge images into a panoramic video image. Electronically selecting a region...

2017
Mohammad Ababil Hossain Bedri A. Cetiner

Beam Steerable Reconfigurable Antenna with Smart RF Switching on 3D Parasitic Level

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