V
P
Last name: VAINIKAINEN
First name: P.
International audience
Publication CREMANT
The effects of mutual coupling and ports isolation on the channel capacity are investigated for two‐patch antenna arrays using measured channel data. Three types of arrays are considered: with coupled radiating elements and ports, with coupled radiating elements but isolated ports, and finally with fully isolated antennas and ports. The channel...
Paper C03P2-2, CD-ROM (USB), 1849225.pdf
International audience
International audience
In this article, we present a radiation pattern measurement setup for probe‐fed millimeter‐wave antennas and the associated calibration procedure. Compared with other existing facilities, our setup has one major innovation: it is composed of two rotating arms allowing measuring the radiated field of a probe‐fed antenna over the quasi‐3D sphere....
International audience
International audience
International audience
This article presents a quasi full 3‐D on‐wafer radiation pattern measurement system for 60 GHz antennas. The measurement of an omnidirectional antenna is reported and shows promising results. The radiation of the probe itself as well as the effects of a connector feeding the antenna are also studied.
National audience
This article presents a quasi full 3‐D on‐wafer radiation pattern measurement system for 60 GHz antennas. The measurement of an omnidirectional antenna is reported and shows promising results. The radiation of the probe itself as well as the effects of a connector feeding the antenna are also studied.
National audience
International audience
This paper results from a collaborative work between the LEAT of the University of Nice and the Radio Laboratory of Helsinki University of Technology (TKK) in the framework of the DEMAS project of ACE2, the European antenna-center of excellence. The purpose is the channel capacity evaluation of different UMTS multi-antenna systems with high and...
National audience
In this paper, the diversity and MIMO performance of a high port to port isolation WLAN dual-band 2.4-2.5 GHz and 5.15-5.825 GHz antenna system is presented. The high isolation of this system is obtained by the insertion of an optimized parasitic element between the two closely-spaced radiating elements. The diversity and MIMO performance of...
National audience
This letter presents a planar omnidirectional antenna structure with wide beam for applications in the 60-GHz band. The antenna was designed using only one metal layer on top of a quartz substrate, which is very cost efficient. The optimal structure, of size 4.5 times 4.3 mm2, exhibits a gain of 1.4 dBi plusmn 0.5 dBi in the omnidirectional...
This paper presents the design of a fully integrated antenna with directional diversity in the 60 GHz band using MEMS process on high resistivity silicon wafer. This active antenna designed for MIMO systems integrates switches and phase shifters.
This paper presents the design of a fully integrated antenna with directional diversity in the 60 GHz band using MEMS process on high resistivity silicon wafer. This active antenna designed for MIMO systems integrates switches and phase shifters.
National audience
In this paper, we present a multiantenna system based on closely spaced planar inverted-F antennas (PIFAs) with high port-to-port isolation in two dual bands [2.4-2.48 GHz] and [5.15-5.725 GHz]. The high isolation, respectively higher than 30 and 20 dB in the entire lower and upper bands, is obtained by inserting two slots on the 100 × 50 mm 2...
In this paper, we present a multiantenna system based on closely spaced planar inverted-F antennas (PIFAs) with high port-to-port isolation in two dual bands [2.4-2.48 GHz] and [5.15-5.725 GHz]. The high isolation, respectively higher than 30 and 20 dB in the entire lower and upper bands, is obtained by inserting two slots on the 100 × 50 mm 2...