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High-speed T/R converter is developed in this paper by using the combination of the circulator, the limiter and the RF switch technology. The super low noise receiving technology is realized through reducing the transmission loss and improving the gain of LNA. Experiments have proved that the T/R component's power tolerance in this paper is more than 100 W, and that the blind distance caused by it...
A low voltage dual-band low noise amplifier (LNA) is presented in this paper. A folded cascode topology is used to reduce the supply voltage. The supply voltage is only 0.7 V. A concurrent dual-band frequency response is achieved by using a broadband input matching network with a band-reject filter. The operating frequencies are 2-2.5 GHz and 4.2-4.8 GHz. The voltage gains are 16.7 dB at 2.2 GHz and...
A compact Ka-band transceiver module with two channels has been developed. This transceiver module consists of two DRO resources, E-plane waveguide filter, coupler, power dividers, over 200 components and 15 MMICs which conclude one mixers, one frequency multiplier, one low noise amplifier, five amplifiers and seven switches, and has superior performance of switch rise-time and fall-time less than...
This paper describes a dual band low-IF transceiver front-end for the Mobile WiMAX (802.16e) standard. The transceiver is implemented in TSMC 0.18 mum CMOS technology and covers the frequency ranges from 2.3 - 2.7 GHz. The front end transmitter provides an output gain control of 50 dB with an EVM below 3%, where as the receiver achieves gain of 37 dB and a noise figure of 3.7 dB. The components included...
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