In this paper Broadband Reconfigurable low Noise Amplifier for Multiband Application is presented. Low noise amplifier is versatile demanded in modern technology, technology demanded amplifier have less reflection and more rejection of noise, in this paper presented differential cross feedback topology and feedback technique for designing of Broadband Reconfigurable low Noise Amplifier, the requirement of integrated circuits raises significantly with increase in the number of elements in it. However, noise and reflection should be less. The noise content is based on the number of elements and routing of components and its process of fabrication. In this paper presented method to reduce noise contents with reduction of reflection. Significantly reducing noise figure (NF) to around 0.8 db, this paper present trade off between input and noise matching. The proposed LNAs achieve an NF of 0 .1-0.8 dB over a impedance bandwidth of amplifier is1GHz to10 GHz.
In recent scenario low noise amplifier available in wide band, single band, multi-band frequency of application. In present days low noise amplifier the also reduces the reflection of signal exist by elements and connecting interface inside the amplifier. Low noise amplifier available with high gain, noise rejection and with less power consumption. In this paper review the work of past decades done in low noise amplifier. Low Noise Amplifier (LNA) is versatile used as a broadband mixer, low noise amplifier, power amplifier and Darlington amplifier, active balunes, multiband amplifier. Today technology required high speed of transmission efficiency with small power consumption and less utilization of elements in proposed amplifier,
In this paper reviewed and discuss multi notch multi polarization antenna for wireless communication, in past decade large number of research carried out, in the field of multi notch and multi polarization, the various application at specified frequency demanded notch antenna, multiple polarization and switch in polarization is strong needed, circular polarization antenna is versatile used in satellite communication, this paper review various technique to used in the designing of notch antenna, in some application needed antenna which exists linear as well as circular polarization, Over the period of time researchers have continuously contributed to improved the performance of antenna, that should be effective for modern communication. Research and development in this field have been reported by many researchers in the past few decades on the basis of different techniques. This type of antenna needed in, UWB, WLAN, satellite communication, GSM, and GPS. Dual-, triple-and quad-band antennas Keywords UWB, CMRC, DGS,
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