Antenna Element Index Modulation for Frequency Diverse Array

Frequency-Domain Adaptive Antenna Array for Multi-Code MC-CDMA

MC-CDMA is an attractive multi-access method for the next generation high-speed mobile communication systems. The uplink transmission performance is limited by the multi-access interference (MAI) from other users since all users share the same bandwidth. Adaptive antenna array can be used to suppress the MAI and to improve the uplink transmission performance. In this paper, we propose a frequen...

Frequency Domain Adaptive Antenna Array for Single-Carrier Uplink Transmission

In this study, we present a single-carrier frequency domain adaptive antenna array (SC-FDAAA) scheme for the uplink transmission and apply the SC-FDAAA scheme to single cell and cellular distributed antenna network (DAN) as well. It is shown by simulation results that the SC-FDAAA scheme can effectively suppress the interfering signals in a severely frequency selective fading channel both in th...

Frequency Diverse Array OFDM Transmitter for Secure Wireless Communication

Phased array antenna using MEMS phase shifter

This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...

Antenna array Cramér-Rao bound design by element relocation

We consider the use of an arbitrary planar array for direction-ofarrival (DOA) estimation, with the commonly used Cramér-Rao Bound (CRB) as a performance measure. By taking advantage of the cosine structure of the array Fisher information matrix (FIM), the FIM is reformulated to be completely represented by three parameters which depend on the array geometry, leading to a new FIM expression tha...