Development of Ultra-Wideband (UWB)Horn Antenna Using Approximation Method

This paper presents a design of an ultra wide-band (UWB) horn antenna for microwave imaging radar system. The key purpose of the study is to design a horn antenna which is used in medical imaging system. The proposed antenna operates within 3.1-10.6 GHz as it is the band allocated for medical industry usage. The antenna known as a directional antenna which is supported by rectangular waveguide. The horn antenna is purposely chosen to design in order to increase the directivity of the antenna within 15-20 dB and achieve higher gain and wider bandwidth as possible. This horn antenna is capable to produce return loss as minimum as possible. The antenna is designed and simulated using CST Microwave Studio. The simulation results show that the pyramidal horn antenna structure exhibits low VSWR as well as good radiation pattern over 3.1-10.6 GHz frequency ban

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

Design of 0.92 Ghz artificial magnetic conductor for metal object detection in RFID tag application with little sensitivity to incidence of angle

In this paper, the new structure of Artificial Magnetic Conductor is presented. The AMC is designed to overcome the failure of detecting the RFID tag when placed near to the metal based object. It is too complicated to design an AMC at low frequency due to limitation of size and bandwidth. In this paper, the 0.92 GHz AMC is designed with different sizes and shapes of slots inserted into the square PEC patch. The size of single unit cell of this AMC is 45.5 mm x 45.5 mm. The AMC is designed in stacked layer to increase the bandwidth of single unit cell. The optimized AMC at 0.92 GHz frequency, had increase the performance of dipole antenna by return loss = -21.8 dB, gain = 3.0 4dB and directivity = 5.149

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

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

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

High Gain, Low Noise Cascode LNA Using T-Matching Network for Wireless Applications

This paper presents a high gain, low noise Cascoded LNA using T-matching network applicable for wireless applications. The amplifier use FHX76LP Low Noise SuperHEMT FET. The LNA designed used T-matching network consisting of lump reactive element at the input and the output terminal. The cascode low noise amplifier (LNA) produced gain of 18.5 dB and noise figure (NF) of 1.30 dB. The input reflection (S11) and output return loss (S22) are -11.5 dB and -12.3 dB respectively. The bandwidth of the amplifier recorded is 1.4 GHz.The input sensitivity is compliant with the IEEE 802.16 standards

Collaborative product development implementation between Malaysian auto suppliers and their customer

Whilst the evidence indicated that supplier involvement in product development resulted in reduced development cost, improves product quality, reduces lead time and enhances flexibility, the mechanism for adapting and managing it to fit an.other culture and organisation is a challenging endeavour. In the Malaysian automotive industries, this collaborative effort had been mostly motivated by the government policies and initiated by the anchor firms. The work reported in the paper describes features of this collaboration carried out by Proton, the pioneer automotive manufacturing company in Malaysia. The objective of this paper is to examine the factors for successful collaborative product development endeavours. The study identifies how collaborative product development is presently being organized and managed in the automotive industry in Malaysia. The product development process is traced to the three aspects involved in collaborative product development; the buyer, the supplier and the process that involves both parties. The findings from this study suggest that from the buyer perspectives, selection of suppliers determines the success of this effort. For the supplier, it is important for them to have technical and design expertise. Factors that involve both the suppliers and buyers include early supplier involvement and buyer-supplier relationships