In this paper, the Noise figure optimization circuit configuration in PHEMT Hybrid LNA design. The optimal noise ?gure is achieved by minimizing the noise contributions by utilizing of LC resonance at input and output matching networks to maintain transistor noise optimization. This article as added with not only frequency domain characteristics but also significant time response discussed. Design includes 2 stage cascaded common source PHEMT transistors with inter stage capacitor matching for improvement of gain. An LNA with Bandwidth 2. 3-5. 8GHz simulation in AWR Microwave office software shows forward gain of 24 dB, noise figure (NF) less than 2 dB and designed amplifier will give the best performance at 5GHz with NF of 0. 9 dB and with flat Gain of 24dB. Furthermore, by balun structure input and output time analysis has been done by injecting sinusoidal sample signals with harmonic balance source models. Design is upgraded with EM structure mapping method for accurate results.

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Psuedomorphic High electron mobility transistor (PHEMT) Advancing in Wireless Evolution (AWR) Low Noise Amplifier (LNA) and Noise Figure (NF).