A Multiple-Antenna System for ISM-Band Transmission

A Multiple-Antenna System for ISM-Band Transmission

We present a multiple antenna system for industrial, scientific, and medical (ISM)-band transmission (MASI). The hardware demonstrator was developed and realized at our institute. It enables multiple-input multiple-output (MIMO)-communication applications and is capable of transmiting arbitrary signals using 8 transmit and 8 receive antennas in parallel. It operates in the 2.4GHz ISM-band. The ...

A Multiple-Antenna System for ISM Band Transmission - Calibration Issues and Eigenbeam Measurements

In this paper, we present eigenbeam measurements performed with our multiple-antenna demonstrator MASI. The existing angle offset of the estimated eigenbeams motivated calibration and verification measurements in an anechoic chamber. After eliminating the sources of errors via phase calibration this squinting is removed and the estimated directionof-arrivals of the transmit signal become plausi...

Embroidered Dual Band Textile Antenna for Ism Band Application on Bending Performance

This research proposes a development of embroidered dual band textile antenna that could integrate wearable telecommunication device with a garment. The proposed antenna could operate at 2.4 GHz and 5.8 GHz of WLAN applications. Two versions of the presented antennas are developed from the conventional rectangular patch. Two types of slot structures are loaded on each antenna and the antenna pe...

An Adaptive Multiple Antenna Transmission Scheme for an OFDMA System

We propose an orthogonal frequency division multiplexing frequency division multiple access (OFDMA) system with an adaptive multiple antenna transmission scheme for future wireless communkatlon systems. In the system, both a transmit diversity scheme with high order modulation and a spatial multiplexingscheme with low order modulation are employed for the given spectral efilciency, between whic...

Multiple antenna transmission