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A reconfigurable dual-band LNA is presented. The LNA employs switching capacitors and circuit in to realize the dual-band operation. These methodologies are used to design and implement a reconfigurable LNA for IMT-A and UWB application. The LNA is implemented using TSMC-0.13 m CMOS technology. Measured performance shows an input matching of better than –13.5 dB, a voltage gain of 18–22.8 dB, with an NF of 4.3–4.7 dB in the band of 3.4–3.6 GHz, and an input matching of better than –9.7 dB, a voltage gain of 14.7–22.4 dB,and with an NF of 3.7–4.9 dB in the band of 4.2–4.8 GHz. According to the measure results, the proposed LNA achieves dual-band operation, and it proves the feasibility of the proposed topology.
A reconfigurable dual-band LNA is presented. The LNA employs switching capacitors and circuit in to realize the dual-band operation. The LNA is implemented using dual-band operation. -0.13 m CMOS technology. Measured performance shows an input matching of better than -13.5 dB, a voltage gain of 18-22.8 dB, with an NF of 4.3-4.7 dB in the band of 3.4-3.6 GHz, and an input matching of better than -9.7 dB, a voltage gain of 14.7-22.4 dB, and with an NF of 3.7-4.9 dB in the band of 4.2-4.8 GHz. According to the measure results, the proposed LNA achieves dual-band operation, and it proves the feasibility of the proposed topology.