Given the high throughput requirement for 5G, merging millimeter wave technologies and multi-user MIMO seems a very promising strategy. As hardware limitations impede to realize a full digital architecture, hybrid MIMO architectures using both analog and digital precoding are considered a feasible solution to implement multi-user MIMO at millimeter wave. Real channel propagation and hardware no...

A simple method of substantial reduction (up to 1-2 orders) of power of base station and mobile unit transmitters used in mobile communication systems by the use of a self-phased array antenna which employs a pilot signal has been proposed. The increase in talk time and the reduction of battery weight by this method is also possible. Estimations of transmitted power reduction and examples of fr...

In RFID systems, how to detect the position precisely is an important and challenging research topic. In this paper, we propose a range-free 2D tag localization method based on phased array antenna, called PATL. This method takes advantage of the adjustable radiation angle of the phased array antenna to scan the surveillance region in turns. By using the statistics of the tags' number in differ...

In this paper, a 36×36 design of thinned phased array antenna with subarrays is proposed. Binary-genetic learning particle swarm optimization (GLPSO) was used to thinning factor 60 % 65 %, and continuous-GLPSO apply 36 subarray shapes. The RF beam steering range an azimuth/elevation 40°, the sidelobe levels (SLLs) were 26.67 dB 28.43 dB, half-power beamwidths (HPBWs) 4.6° 4.7°. When applied, di...

FEKO is a 3D simulation tool for the analysis of electromagnetic fields. FEKO can solve the problem of any structural type with a very comprehensive MoM code or other tailored code. In this paper, a radiation pattern for conformal phased array antenna on the surface of a PEC finite cylinder is calculated using FEKO 4.0. The simulation results accord with the true characteristics of conformal ar...