Sigma Delta Modulator Based Multi-Standard Transmitter Design For Wireless Communication Applications | ||||
| The International Conference on Electrical Engineering | ||||
| Article 10, Volume 10, 10th International Conference on Electrical Engineering ICEENG 2016, April 2016, Page 1-13 PDF (552.93 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/iceeng.2016.30263 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Mayar A. Mohammed; Aziza I. Hussein; Gerges M. Salama; Farouk Algeldawy | ||||
| Abstract | ||||
| This paper presents a sigma delta modulator (ƩΔM) based transmitter that is suitable for digital multi-standard wireless applications especially for software defined radio (SDR) systems. The proposed transmitter mainly consists of a sigma-delta modulator and a switching-mode power amplifier. In the proposed design, a third order low-pass ƩΔM is implemented to produce a high frequency digital-like signals that is used to drive a high efficient class-E switching mode power amplifier. The target technology for fabrication is TSMC180nm CMOS process. The proposed design is tested for different standards such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Wi-Fi and Long Term Evolution (LTE) with frequency bands of (1.8GHz, 2.1GHz, 2.4GHz, (1.9, 2.6GHz)) respectively. The class-E power amplifier has shown peak power added efficiency (PAE) and peak output power of 62/58.7/60/52/47% and 27.7/27.5/27.6/27/26.7dBm, respectively, at the mentioned standards. Moreover, the proposed power amplifier can cover a wide range of frequency from 1.8GHz to 2.6GHz maintaining high efficiency. | ||||
| Keywords | ||||
| RF digital transmitter; low-pass (LP) sigma-delta modulator (ƩΔM); class -E power amplifier | ||||
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