This paper presents a novel variable gain amplifier (VGA) design which is applied in the automatic gain control (AGC) loop of DVB-T/H receivers. The VGA composed of three cascaded tunable gain stages to provide a 70 dB dynamic range with 2 dB gain steps. Each gain stage is based on a digital variable gain amplifier (DVGA) which is composed of a plurality of gain blocks (GBs) and a fully differe...

Multi-hop relay channels use multiple relay stages, each with multiple relay nodes, to facilitate communication between a source and destination. Previously, distributed space-time codes were proposed to maximize the achievable diversity-multiplexing tradeoff, however, they fail to achieve all the points of the optimal diversitymultiplexing tradeoff. In the presence of a low-rate feedback link ...

In this paper, a 5.2GHz low noise amplifier in 0.25um CMOS utilizing inter-stage matching is designed. Two realizations for a low value of inductor within the LNA are implemented. The measurement results are 7dB gain and 5.86dB noise figure is achieved for the on-chip inductor realization, and 8.3dB gain and 5.74dB noise figure is achieved for the bond-wire inductor realization.

In the recent years, interstitial brachytherapy implantation has become the treatment of choice for early stage prostate cancer patients. Treatment of prostate cancer with radiation is traced back to 1909. Originally this treatment modality was very crude and could not gain much popularity till 1982. Advancements in radioactive source designs, introduction of new low energy radioactive sources,...

Performance indicators that contributed to success at the group stage and play-off stages of 2019 Rugby World Cup were analysed using publicly available data obtained from official tournament website both a non-parametric statistical technique, Wilcoxon's signed rank test, decision rules technique machine learning called RIPPER. Our results found ball carry effectiveness (percentage carries pen...

144606-7171-IJET-IJENS © December 2014 IJENS I J E N S Abstract— This paper shows the design of a broadband low noise amplifier (LNA) for ultra-wideband (UWB) applications. The proposed LNA uses cascode configuration technique followed by an inductive inter-stage network to realize the flat gain throughout the UWB band. The inductive inter-stage network is cascaded to a common source amplifier ...

This paper presents the design a power amplifier (PA) for direct sequence ultra-wideband applications using 0.13 μm CMOS technology operating in a low band frequency of 3.1 GHz to 5.1 GHz. Current-reused technique is employed at the first stage to increase the gain at the upper end of the desired band. Cascaded common source configuration with shunt peaking inductor at the second stage helps to...

Ever since its discovery, graphene bears great expectations in high frequency electronics due to its irreplaceably high carrier mobility. However, it has long been blamed for the weakness in generating gains, which seriously limits its pace of development. Distributed amplification, on the other hand, has successfully been used in conventional semiconductors to increase the amplifiers' gain-ban...

A multistage operational transconductance amplifier with a feedforward compensation scheme which does not use Miller capacitors is introduced. The compensation scheme uses the positive phase shift of left-half-plane (LHP) zeroes caused by the feedforward path to cancel the negative phase shift of poles to achieve a good phase margin. A two-stage path increases further the low frequency gain whi...

This paper presents a high‐conversion gain, low‐power, folded CMOS mixer for ZigBee application in 2.4 GHz of user bandwidth. The proposed mixer adapts current reuse technique to increase the conversion gain while substantially reducing the DC power dissipation. The current from LO stage is reused at the transconductance stage to reduce the power consumption. This mixer is verified in 0.13 μm s...