Abstract
The Worldwide Interoperability for Microwave Access, or WiMax, is a wireless communication technique based on IEEE 802.16 standards. Its advantage of sending high-data rates over long distances, while using a single base station to cover a large area, has made this technique a flexible and reliable solution for public wireless networks. In this paper, a current-bleeding Gilbert Cell down-converter mixer is proposed for WiMax direct-conversion receivers. With 5.1dB of conversion gain, 1.5 dBm of IIP3, 36 dBm of IIP2 as well as 11.6dB and 8.4dB of single sideband and double sideband noise figure, respectively, the proposed 0.15mm InGaAspHEMT mixer largely meets the WiMax standards as demonstrated though successful comparison with published designs.
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