Highly Efficient Multi-Band Power Amplifier Employing Reconfigurable Matching and Biasing Networks

Atsushi FUKUDA; Hiroshi OKAZAKI; Shoichi NARAHASHI

doi:10.1587/transele.E93.C.949

Highly Efficient Multi-Band Power Amplifier Employing Reconfigurable Matching and Biasing Networks

Atsushi FUKUDA, Hiroshi OKAZAKI, Shoichi NARAHASHI

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This paper presents a highly efficient multi-band power amplifier (PA) with a novel reconfigurable configuration. It consists of band-switchable matching networks (BS-MNs) and a biasing network (BS-BN) that are available for multi-band operation. BS-MNs with a susceptance block (SB) require a shorter transmission line (TL) than those without the SB at some target impedances. This paper theoretically derives the relationships of the required TL lengths for the BS-MN with or without the SB and the target impedances. The required TL lengths at the target impedances are evaluated numerically in order to discuss the advantages of the proposed configuration. The BS-BN employing switches for band switching can supply DC power to an amplification device without additional DC power dissipation because the DC bias current does not flow through the switches. Numerical analyses confirm that a BS-BN can be configured with low loss in multiple bands. Based on the proposed configuration, a 1/1.5/1.9/2.5-GHz quad-band reconfigurable PA is designed and fabricated employing RF microelectro mechanical systems switches and partitioned low temperature co-fired ceramics substrates. The fabricated 1 W-class PA achieves a high output power of greater than 30 dBm and a maximum power added efficiency of over 40% in all operating modes.

Publication: IEICE TRANSACTIONS on Electronics Vol.E93-C No.7 pp.949-957

Publication Date: 2010/07/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E93.C.949

Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)

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Atsushi FUKUDA, Hiroshi OKAZAKI, Shoichi NARAHASHI, "Highly Efficient Multi-Band Power Amplifier Employing Reconfigurable Matching and Biasing Networks" in IEICE TRANSACTIONS on Electronics, vol. E93-C, no. 7, pp. 949-957, July 2010, doi: 10.1587/transele.E93.C.949.
Abstract: This paper presents a highly efficient multi-band power amplifier (PA) with a novel reconfigurable configuration. It consists of band-switchable matching networks (BS-MNs) and a biasing network (BS-BN) that are available for multi-band operation. BS-MNs with a susceptance block (SB) require a shorter transmission line (TL) than those without the SB at some target impedances. This paper theoretically derives the relationships of the required TL lengths for the BS-MN with or without the SB and the target impedances. The required TL lengths at the target impedances are evaluated numerically in order to discuss the advantages of the proposed configuration. The BS-BN employing switches for band switching can supply DC power to an amplification device without additional DC power dissipation because the DC bias current does not flow through the switches. Numerical analyses confirm that a BS-BN can be configured with low loss in multiple bands. Based on the proposed configuration, a 1/1.5/1.9/2.5-GHz quad-band reconfigurable PA is designed and fabricated employing RF microelectro mechanical systems switches and partitioned low temperature co-fired ceramics substrates. The fabricated 1 W-class PA achieves a high output power of greater than 30 dBm and a maximum power added efficiency of over 40% in all operating modes.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.949/_p

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@ARTICLE{e93-c_7_949,
author={Atsushi FUKUDA, Hiroshi OKAZAKI, Shoichi NARAHASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Highly Efficient Multi-Band Power Amplifier Employing Reconfigurable Matching and Biasing Networks},
year={2010},
volume={E93-C},
number={7},
pages={949-957},
abstract={This paper presents a highly efficient multi-band power amplifier (PA) with a novel reconfigurable configuration. It consists of band-switchable matching networks (BS-MNs) and a biasing network (BS-BN) that are available for multi-band operation. BS-MNs with a susceptance block (SB) require a shorter transmission line (TL) than those without the SB at some target impedances. This paper theoretically derives the relationships of the required TL lengths for the BS-MN with or without the SB and the target impedances. The required TL lengths at the target impedances are evaluated numerically in order to discuss the advantages of the proposed configuration. The BS-BN employing switches for band switching can supply DC power to an amplification device without additional DC power dissipation because the DC bias current does not flow through the switches. Numerical analyses confirm that a BS-BN can be configured with low loss in multiple bands. Based on the proposed configuration, a 1/1.5/1.9/2.5-GHz quad-band reconfigurable PA is designed and fabricated employing RF microelectro mechanical systems switches and partitioned low temperature co-fired ceramics substrates. The fabricated 1 W-class PA achieves a high output power of greater than 30 dBm and a maximum power added efficiency of over 40% in all operating modes.},
keywords={},
doi={10.1587/transele.E93.C.949},
ISSN={1745-1353},
month={July},}

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TY - JOUR
TI - Highly Efficient Multi-Band Power Amplifier Employing Reconfigurable Matching and Biasing Networks
T2 - IEICE TRANSACTIONS on Electronics
SP - 949
EP - 957
AU - Atsushi FUKUDA
AU - Hiroshi OKAZAKI
AU - Shoichi NARAHASHI
PY - 2010
DO - 10.1587/transele.E93.C.949
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2010
AB - This paper presents a highly efficient multi-band power amplifier (PA) with a novel reconfigurable configuration. It consists of band-switchable matching networks (BS-MNs) and a biasing network (BS-BN) that are available for multi-band operation. BS-MNs with a susceptance block (SB) require a shorter transmission line (TL) than those without the SB at some target impedances. This paper theoretically derives the relationships of the required TL lengths for the BS-MN with or without the SB and the target impedances. The required TL lengths at the target impedances are evaluated numerically in order to discuss the advantages of the proposed configuration. The BS-BN employing switches for band switching can supply DC power to an amplification device without additional DC power dissipation because the DC bias current does not flow through the switches. Numerical analyses confirm that a BS-BN can be configured with low loss in multiple bands. Based on the proposed configuration, a 1/1.5/1.9/2.5-GHz quad-band reconfigurable PA is designed and fabricated employing RF microelectro mechanical systems switches and partitioned low temperature co-fired ceramics substrates. The fabricated 1 W-class PA achieves a high output power of greater than 30 dBm and a maximum power added efficiency of over 40% in all operating modes.
ER -