| Citation: |
Jia Fei, Diao Shengxi, Zhang Xuejuan, Fu Zhongqian, Lin Fujiang. A digitally controlled power amplifier with neutralization capacitors for ZigbeeTM applications[J]. Journal of Semiconductors, 2012, 33(12): 125002. doi: 10.1088/1674-4926/33/12/125002
Jia F, Diao S X, Zhang X J, Fu Z Q, Lin F J. A digitally controlled power amplifier with neutralization capacitors for ZigbeeTM applications[J]. J. Semicond., 2012, 33(12): 125002. doi: 10.1088/1674-4926/33/12/125002.
Export: BibTex EndNote
|
A digitally controlled power amplifier with neutralization capacitors for ZigbeeTM applications
doi: 10.1088/1674-4926/33/12/125002
-
Abstract
This paper presents a single chip CMOS power amplifier with neutralization capacitors for ZigbeeTM system according to IEEE 802.15.4. A novel structure with digital interface is adopted, which allows the output power of a PA to be controlled by baseband signal directly, so there is no need for DAC. The neutralization capacitors will increase reverse isolation. The chip is implemented in SMIC 0.18 μm CMOS technology. Measurement shows that the proposed power amplifier has a 13.5 dB power gain, 3.48 dBm output power and 35.1% PAE at P 1dB point. The core area is 0.73 × 0.55 mm2.-
Keywords:
- power amplifier
-
References
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] -
Proportional views
DownLoad: