Low Noise Amplifier at 5.8GHz with Cascode and Casc aded Techniques Using T-Matching Network for Wireless Ap plications

This project present a design of a 5.8 GHz low noise amplifier (LNA) design with cascode and cascaded techniques using T-matching network applicable for IEEE 802.16 standard. The amplifier use FHX76LP Low Noise SuperHEMT FET. The LNA designed used T-matching network consisting of lump element reactive element at the input and the output terminal. The cascode and cascaded low noise amplifier (LNA) produced gain of 36.8dB and noise figure (NF) at 1.3dB. The input reflection (S11) and output return loss (S22) are -11.4dB and -12.3dB respectively. The bandwidth of the amplifier is more than 1GHz. The input sensitivity is compliant with the IEEE 802.16 standards.DOI:http://dx.doi.org/10.11591/ijece.v1i1.6

Simulation of Single Stage Cascode Low Noise Amplifier at 5.8GHz Using T-Matching Network

This paper presents a 5.8 GHz single stage cascode low noise amplifier using T-matching techniques for IEEE 802.16 standard. The amplifier use FHX76LP Low Noise SuperHEMT FET. The design simulation process is using Advance Design System (ADS) software. The cascode low noise amplifier (LNA) produced gain of 17.21dB and noise figure (NF) at 0.845dB. The input reflection (S11) and output return loss (S22) are -12.71dB and -15.52dB respectively. The bandwidth of the amplifier is 1GHz. The input sensitivity is complying with the IEEE 802.16 standards

The Cascode and Cascaded Techniques LNA at 5.8GHz Using T-Matching Network for WiMAX Applications

This project presents the cascode and cascaded techniques LNA at 5.8GHz using T-matching network applicable for worldwide interoperability for microwave access (WIMAX) application. The amplifier uses FHX76LP Low Noise SuperHEMT FET. The LNA designed used T-matching network consisting of lump element reactive element at the input and the output terminal. The cascode and cascaded low noise amplifier (LNA) produced gain of 52.4dB and noise figure (NF) at 1.3dB. The input reflection (S11) and output return loss (S22) are -19.71dB and -10.07dB respectively. The bandwidth of the amplifier is more than 1.24GHz. The input sensitivity is compliant with the IEEE 802.16 standards

Design of LNA at 5.8GHz with Cascode and Cascaded Techniques Using T-Matching Network for WiMAX Applications

This project presents a 5.8 GHz Low Noise Amplifier (LNA) design with cascode and cascaded techniques using T-matching network applicable for IEEE 802.16 standard.The amplifier uses the FHX76LP Low Noise SuperHEMT FET. The design simulation process is done by using the Advance Design System (ADS) software. The cascode and cascaded low noise amplifier (LNA) produces a gain of 53.4dB and noise figure (NF) of 1.2dB. The input reflection (S11) and output return loss (S22) are -24.3dB and -23.9dB respectively. The input sensitivity is complying with the IEEE 802.16 standards

High Gain of Cascode LNA at 5.8GHz Using T-Matching Network for wireless Applications

This paper presents a design of high gain single stage cascode low noise amplifier (LNA), which operates at 5.8GHz frequency for WIMAX application. The LNA design used T-Matching network consisting of lump reactive element at input and output matching. The design simulation process is using Advance Design System (ADS) software. A cascode low noise amplifier (LNA) produced gain of 19.52dB and noise figure (NF) at 1.195dB. The input reflection (S11) and output return loss (S22) are -18.86dB and -19.49dB respectively. The bandwidth of the amplifier is more than 1GHz. The input sensitivity is complying with the IEEE 802.16 standards. The LNA used FHX76LP low noise SuperHEMT FET transistor from Eudyna Inc

Low Noise Amplifier at 5.8GHz with Cascode and Cascaded Techniques Using T-Matching Network for Wireless Applications

This paper present a 5.8 GHz low noise amplifier (LNA) design with cascode and cascaded techniques using T-matching network applicable for IEEE 802.16 standard. The amplifier use FHX76LP Low Noise SuperHEMT FET. The design simulation process is using Advance Design System (ADS) software. The cascode and cascaded low noise amplifier (LNA) produced gain of 36.52dB and noise figure (NF) at 1.2dB. The input reflection (S11) and output return loss (S22) are -21.1dB and -27.7dB respectively. The bandwidth of the amplifier is more than 1GHz. The input sensitivity is complying with the IEEE 802.16 standards

Biosafety of RNA silencing and genome editing technologies in crop plants: Malaysian and Australian research perspectives

Research in agricultural biotechnology can produce novel solutions to address the ever growing demand for food, feed, renewable materials and renewable energy using increasingly limited resources. Yet research is expensive with long timelines before implementation can disseminate the benefits to society, so there is a need to maximise co-operation and communication between scientists, stakeholders and their governments, to optimise research, its development and the implementation of research outcomes, into mainstream applications. Recognising the impacts of regulations on biosafety, biosecurity and intellectual property policy on strategies for research, senior and early career researchers from two research intensive universities in Malaysia and Australia, held a workshop to identify and to deliberate over two key areas of technology that offer much promise for agriculture, namely RNA silencing and genome editing. A major focus of the workshop was the regulation of new breeding technologies, and how the regulations need to take into account these new technologies. Themes discussed were the need for harmonisation of international legal frameworks and careful use of terminology, standards and guidelines; and the need for good communication and consensus within and between groups of stakeholders and law-makers. This mini-review highlights the deliberations and recommendations from the workshop

Design and Fabrication of Radio Frequency Amplifier with 3 dB π-Network Attenuator Isolation

This paper presents the design and fabrication of radio frequency amplifier (RFA), which operates at 5.8 GHz unlicensed frequency for WiMAX application. The RFA designed used T-matching network consisting of lump reactive elements, 3 dB attenuator and microstrip line at the input and output impedance. The RFA developed in this project contribute a gain of 15.6 dB with overall noise figure of 2.4 dB. The overall measured bandwidth is 1.240 GHz with S parameters S11, S12 and S22 measured are -12.4 dB, -25.5 dB and -12.3 dB respectively. The isolation result shows that there is a significant contribution using 3 dB π-network. The RFA used FET transistor EPA018A from Excelics Semiconductor Inc

Wideband 5.8 GHz Radio Frequency Amplifier with 3 dB Π- Network Attenuator Isolation

This paper presents a design of radio frequency amplifier (RFA), which operates at 5.8 GHz frequency for WiMAX application. The RFA designed used T-matching network consisting of lump reactive elements, 3 dB attenuator and microstrip line at the input and output impedance. The RFA developed in this project contribute a gain of 15.6 dB with overall noise figure of 2.4 dB. The overall measured bandwidth measures is 1.240 GHz with S parameters S11, S12 and S22 measured are -12.4 dB, -25.5 dB and -12.3 dB respectively. The RFA used FET transistor EPA018A from Excelics Semiconductor Inc

Comparison of Non Chirped Nrz, Chirped Nrz and Alternate-chirped Nrz Modulation Techniques for Free Space Optic (Fso) Systems

Free Space Optics (FSO) is the technology where transmission occurs through optical waveform that contains datatransformed at the transmitter from electrical signal. Since the transmission medium of FSO is atmosphere, atmosphericscattering is the major cause for interruption of FSO link. Non return zero (NRZ) modulation is the dominant modulationscheme employed in commercial terrestrial Free Space Optic (FSO) communication systems. This research are requiredto investigate three viable modulation techniques; NRZ pulse formats, non-chirped NRZ, chirped NRZ, and alternatechirpedNRZ at 10 Gb/s and 40 Gb/s data rate. The 1550 nm of continuous wave (CW) laser is modulated with threedifferent modulation formats over 1 km of FSO channel. The signal is propogated at different attenuation value based onMalaysia weather conditions. In this paper we have successfully compared the three modulation techniques in FSOsystem due to the Malaysia weather and the performance is accessed at bit error rate (BER) of 1x10-9. The presentedsimulation of these three modulation shows that alternate-chirped NRZ has slightly better performance compared to thenon-chirped NRZ and chirped NRZ modulation format at clear weather, haze, light rain, medium rain and heavy rain.We believe that, this system is an alternative for the future optical wireless network that has a potential to be installed inthe urban and sub-urban area