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The Search and Rescue Transponders are used to search for the lost ship and aircraft. The transponder antenna resonates at the frequency of 9 GHz. The design is considered using FR4 (Flame Retardant) substrate of dielectric constant 4.4 and loss tangent 0.0019. A micro strip line fed rectangular patch antenna is designed in such a way that it resonates at 9 GHz. The return loss and gain for the designs are, Single Element Design: Return Loss is -24.291 dB, Gain Total is 5.9083 dB, 1*2 Array Design: Return Loss is -19.3635 dB, Gain Total is 8.5915 dB, 1*4 Array Design: Return Loss is -34.4773 dB, Gain Total is 9.4879 dB. Other antenna parameters such as VSWR, Radiation Efficiency, Gain 2D, Specific Absorption Rate are observed. The antenna structure is simple, flat and straightforward. The design can be embedded easily in Search and Rescue Transponder Transmitter because it is geometrically small. The simulation and analysis were done using High Frequency Structure Simulator (HFSS).

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Malicious codes have become one of the major threats to computer systems. The malicious software which is also referred to as malware is designed by the attackers and can change their code as they propagate. The existing defense against malware is highly affected by the diversity and volume of malware variants that are being created rapidly. The variants of malware families exhibit typical behavioral patterns exhibiting their origin and purpose. The behavioral patterns can be exploited statically or dynamically to detect and classify malware into their known families. This paper provides a detailed survey of techniques to detect and classify malware into their respective families.

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