3.5/5 GHz DUAL-BAND 8 x 8 ADAPTIVE ARRAY ANTENNA

Abstract

Abstract-In this paper, 4G smart planar dual-band phased array antenna suitable for fourth generation (4G) Long Term Evolution (LTE) at 3.5 GHz and also Wireless Local Area Network (WLAN) at 5 GHz systems is developed. The proposed planar array antenna is built using a microstrip rectangular U-slotted patch antenna element. Single element and linear sub-arrays with 1 × 2 and 1 × 4 dimensions of this element are designed, fabricated, and measured by the same authors. Separate feeding technique is used for each element of the smart planar array antenna; such that full beam-shaping can be achieved by steering the pattern main-loop to different angles in both azimuth and elevation directions with different amplitudes. Beam steering up to ±22 degrees can be achieved in both azimuth and elevation direction at 60 degree phase shift without the presence of any grating lobes. At this value of phase shift, the gain is 22.62 dBi without changing in the mutual coupling. This is also suitable for 4G Multiple-Input Multiple-Output (MIMO) wireless mobile applications with reduced power consumption. Design simulation and optimization processes are carried out with the aid of the Agilent Advanced Design System (ADS) electromagnetic simulator that uses the fullwave Method of Moment (MoM) numerical technique.

Study and Design a Novel Adaptive Array Antenna for a RFID Applications

“…The power supply controls the amplitudes and relative phases of these sources and creates the type of linear or flat array antenna [5], [6]. There are two ways to power a linear array, either in series [7] or parallel [8]- [10].…”

$L/S$ -Band Frequency Reconfigurable Multiscale Phased Array Antenna With Wide Angle Scanning

“…For large separation between the bands, reconfigurability is required at antenna element and at array topology level to adapt the array. Only a very limited number of reconfigurable or dual-band antennas have been designed for array applications in the last decades [14][15][16][17][18][19][20][21][22][23][24]. To date examples of multi-band antenna arrays with both a frequency ratio beyond 2:1 and 2-D scanning capability of more than ±45° in both bands are very limited in open literature [25][26][27].…”

Radiation characteristics of circular waveguide antenna loaded with ferrite rod

“…Electronic (phased array) and mechanical techniques are widely used to achieve beam steering, but require complicated array feeding circuits and relatively slow and inflexible mechanical control devices [8]. In addition, linear and planar phased array antennas are limited by mutual coupling and power handling capabilities [9]. Thus, the design of a simple beam steering antenna with efficient power handling mechanism is needed.…”