Switched Parasitic Dipole Antenna Array for High-Data-Rate Body-Worn Wireless Applications

A 5 GHz beam steering array for portable wireless MIMO application

“…By changing the states of the switches the currents (magnitudes and phases) on those dipoles can be controlled because of the change in their feed impedance. This in turn allows the radiation pattern to be steered [5]. To design the array simulations were performed using HFSS (Ansys Inc.).…”

“…Similarly, the parameter, d has an important role because it determines whether the parasitic elements are going to act as reflector or directors [5]. Simulation results with all switches ON vs. frequency with d as the parameter are shown in Fig.…”

“…Except that conventional phased arrays have large footprints making them unsuitable for integration into smaller platforms. Beam steering parasitic smart antenna arrays can fill that gap [5][6].…”

“…Recently we introduced the concept of wearable beam steering antenna arrays for 2.45, 5, and 0.9 GHz applications where the array beam was steered using PIN diodes and varactor diodes [5][6][7]. In this paper we present a compressed footprint, high gain collinear MIMO antenna array for portable wireless device WLAN application.…”

Design of a Printable, Compact Parasitic Array With Dual Notches

“…Typically, the main radiation of a parasitic array antenna occurs in one fixed direction that is toward to the director's direction as shown in [3][4][5]. In [7][8][9], the methods to switch the radiation pattern of parasitic array antennas using varactor diodes or p-i-n diodes were also introduced.…”