Comparison of Two Drain Modulator for Multi-mode Multi-band Transmitters Employing EER Technique

摘要：

This paper compares two types of Amplitude Modulator and their applicability in High Power Amplifiers (HPA) with Envelope Elimination and Restoration (EER) technique and Low Voltage supply for the use of multi-mode multi-band terminals: a very flexible terminal plays a key role in the worldwide telecommunications coverage. First of all a HPA with drain efficiency of 88％ that operates at 1.95 GHz was tested with a typical drain modulator, then is shown that a different modulator can achieve a better drain efficiency but it is going to operate with lower values of modulation index (ma).

作者: G. Filice V. Ferrara

作者单位: Electronic Engineering, University of Rome, La Sapienza, Italy Department of Elettronic Engineering, University of Rome, La Sapienza, Italy

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)

会议地点: 北京

会议语种:英文

页码: 756-759

在线出版日期: 2007-03-26（万方平台首次上网日期，不代表论文的发表时间）