Name
Abstract | ||
|---|---|---|
This paper presents a novel design scheme for a band-switchable multi-band power amplifier (BS-MPA). A key point of the design scheme is configuring multi-section reconfigurable matching networks (MR-MNs) optimally in terms of low loss matching in multiple frequency bands from 0.7 to 2.5 GHz. The MR-MN consists of several matching sections, each of which has a matching block connected to a transmission line via a switch. Power dissipation at an actual on-state switch results in the insertion loss of the MR-MN and depends on how the impedance is transformed by the MR-MN. The proposed design scheme appropriately transforms the impedance of a high power transistor to configure a low loss MR-MN. Numerical analyses show quantitative improvement in the loss using the proposed scheme. A 9-band 3-stage BS-MPA is newly designed following the proposed scheme and fabricated on a multi-layer low temperature co-fired ceramic substrate for compactness. The BS-MPA achieves a gain of over 30 dB, an output power of greater than 33 dBm and a power added efficiency of over 40% at the supply voltage of 4 V in each operating band. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1587/transele.E95.C.1172 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | Field | DocType |
power amplifier, reconfigurable, matching network, multi-band, switch | Low-noise amplifier,Direct-coupled amplifier,Instrumentation amplifier,Linear amplifier,Electronic engineering,Cascade amplifier,Power-added efficiency,Engineering,RF power amplifier,Amplifier | Journal |
Volume | Issue | ISSN |
E95C | 7 | 1745-1353 |
Citations | PageRank | References |
1 | 0.44 | 2 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Atsushi Fukuda | 1 | 4 | 3.25 |
| Takayuki Furuta | 2 | 22 | 6.81 |
| Hiroshi Okazaki | 3 | 3 | 4.78 |
| Shoichi Narahashi | 4 | 5 | 8.14 |
| Toshio Nojima | 5 | 13 | 9.63 |