This paper proposes a new design of an electromagnetic interference wideband filtering power divider (FPD) with wide stopband based on the genetic algorithm (GA). A set data structures is constructed by describing corresponding connection method between basic units and their electrical parameters in three-port design. Then, GA used to find appropriate topology parameters, including isolation re...

The integration of wide variety of communication services is made possible with invention of 3G technology. Code Division Multiple Access 2000 operates on various RF channel bandwidths 1.2288 or 3.6864 Mcps (1x or 3x systems). It is a 3G system which offers high bandwidth and wireless broadband services but its efficiency is lowered due to various factors like fading, interference, scattering, ...

Abstract A modification of transmit filtering in single-carrier (SC) transmission yields an improvement of system performance in aspects of either peak-to-average power ratio (PAPR) or error probability. In this paper, such a novel transmit filtering is introduced in order to reduce PAPR, while maintaining the error probability similar to conventional transmit filter. The filter is determined b...

In this paper, a carbon implant is investigated in detail from the perspectives of performance advantages and side effects for the thick n-type metal-oxide-semiconductor field-effect transistor (n-MOSFET). Threshold voltage (Vth) adjustment using a carbon implant significantly improves the Vth mismatch performance in a thick (3.3-V) n-MOS transistor. It has been reported that a bad mismatch occ...

Many existing results on the analysis of OFDM systems are based on an analog representation. The actual implementation of OFDM transmitters typically consists of a discrete DFT matrix and a digital-to-analog (DAC) converter. In this paper, we show that the analog representation admits the implementation of a DFT matrix followed by a DAC converter only in special cases. Necessary and sufficient ...

We demonstrate integrated, mode-evolution-based, 1x2 port high-pass/low-pass filters in a silicon photonics platform that can simultaneously achieve broadband operation, single cutoff wavelength, and a record high filter roll-off of 2.5 dB/nm for the first time. OCIS codes: (130.7408) Wavelength filtering devices; (230.1360) Beam splitters; (130.3120) Integrated optics devices.

In multicarrier data transmission using filter banks, adaptive equalizers can be introduced in the receiver in every sub-channel, to achieve high bit rates. Following conventional data transmission techniques, two approaches can be envisaged, namely the double sampling equalizer (DSE) and the critical sampling equalizer (CSE). Both schemes are discussed and assessed in the present paper, in the...

—Interference alignment (IA) is an emerging technique which can suppress the interference effectually and provides a means to approach the channel capacity in the multiple-input and multiple-output (MIMO) networks. However, little work has concentrated on the bandwidth efficiency of IA systems, which is undoubtedly important especially in the current situations of spectrum scarcity. In this pa...

Like language, the human capacity to create music is one of the most salient and unique markers that differentiates humans from other species (Cross, 2005). In the following study, the authors show that people’s ability to perceive emotions in infants’ vocalizations (e.g., cooing and babbling) is linked to the ability to perceive timbres of musical instruments. In one experiment, 180 “synthetic...

Introduction There remains some disagreement on the source of anterior ground reaction forces (Fx) in normal gait. For some, a passive "roll-off" results from the position of the body’s center-ofmass (COM) forward of its base of support [1], and to others, an active "push-off" results from plantarflexion power generation at the ankle [2]. The former theory essentially models the body as an inve...