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Due to the explosion in popularity of Internet of things (IoT) in the recent years, many applications have been rapidly developed in nearly every fields and the related technology has subsequently become much more matured. This paper proposes to develop a system integrated with several latest advanced technologies, namely Over-the-air (OTA) programming, wireless charger, and wireless sensor network...
A new approximate synthesis method for the substrate integrated coaxial line (SICL) is proposed using the equivalent capacity. Firstly, the SICL is considered as the rectangular coaxial line with the same characteristic impedance, which has a simpler structure. Then, the conventional synthesis method for the SICL which is based on the formula of substrate integrated waveguide (SIW) is theoretically...
In this talk, the recent research advances in channel characteristic measurement, IC design etc. for the newly proposed millimeter wave high data rate wireless communication standard Q-LINKPAN or IEEE802.11aj (45GHz) are reviewed.
In this paper, we present a wideband distributed bidirectional multiple-input — multiple-output (MIMO) channel sounder. It is developed for characterizing up to 4×4 MIMO channel in four frequency bands from 2GHz to 15GHz with 100MHz bandwidth. To fully understand the dynamic characteristics of multilink MIMO, such as distributed and cooperative MIMO, the radio over fiber (RoF) techniques is adopted...
A printed log-periodic dipole antenna (PLPDA) with multiple notched bands is proposed for ultrawideband (UWB) applications. The impedance bandwidth of 3.1 GHz-10.6 GHz with VSWR less than 2 is achieved based on the wideband property of the PLPDA as well as the half mode substrate integrated waveguide (HMSIW) Balun. Different from omnidirectional UWB antennas, the end-fire radiation pattern of the...
Printed wideband and ultra-wideband (UWB) antennas are the simple and low cost electromagnetic radiator design for the front-end system with the low-power and high-data-ratio transmissions. Antenna with stable and directional radiation pattern is critical to maintain the link gain of the wireless communication. With co-existence of UWB and other different wireless systems, UWB antenna with notched...
This paper presents the results of wideband channel measurement campaigns conducted in vehicle environment. A frequency range of 0.5 - 16 GHz was measured using a vector network analyzer. Typical in-vehicle scenarios, including line-of-sight (LOS), non-line-of-sight (NLOS), different distance, impact of passengers, were considered. The objective of this work is to obtain a better assessment of the...
In this paper, some recent research advances in compact ultra-wideband antenna with multiple stop bands for UWB wireless communications or shared for multiple wireless communication systems are reviewed.
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