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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jaehun Lee Dong-Ho Lee Songcheol Hong |
| Copyright Year | 2001 |
| Abstract | A Doherty Power Amplifier (PA) with the proposed GaN MMIC for femtocell base stations is presented. The MMIC was fabricated using a 0.25 μm TriQuint GaN process. An on-chip quadrature coupler based on a lumped magnetic coupler with capacitors was used to reduce the chip size. The MMIC with an area of 2.5 × 2.7 mm2 includes an input matching circuit, a driver transistor, carrier and peak transistors at power stage, and an inter-stage matching network with the quadrature coupler. The Doherty PA with MMIC shows 56.2% power added efficiency (PAE) with a gain of 19.7 dB when the output power is 41.2 dBm for a 2.14 GHz CW signal. For a down link WCDMA signal, the PAE of 39.6% is achieved at an output power of 35.3 dBm. The Doherty PA with the MMIC presented here has a small effective module area of 7 × 15 mm2, which can be readily reduced further. |
| Sponsorship | IEEE Microwave Theory and Techniques Society |
| Starting Page | 194 |
| Ending Page | 196 |
| Page Count | 3 |
| File Size | 608859 |
| File Format | |
| ISSN | 15311309 |
| Volume Number | 24 |
| Issue Number | 3 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | MMICs Gallium nitride Couplers Base stations Impedance Power generation Gain WCDMA Doherty power amplifier (PA) femtocell base station GaN power MMIC lumped element magnetic coupler |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electrical and Electronic Engineering |
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