The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Modulator kuadratur SiGe-MMIC 0.4-5.8 GHz (Q-MOD) menggunakan pengadun terkawal arus sendiri untuk radio kognitif diterangkan. Pengadun terkawal arus sendiri terdiri daripada pengadun sel Gilbert dan litar kawalan arus sendiri yang terdiri daripada kedua-dua litar maklum balas semasa dan penguat penimbal keluaran. Litar kawalan arus sendiri secara automatik mengawal arus pengadun mengikut tahap kuasa output, dan meningkatkan kelinearan pada frekuensi radio yang luas (RF) julat. Keputusan simulasi menunjukkan bahawa cadangan Q-MOD menyedari 1 dB titik mampatan (P1 dB) peningkatan lebih daripada 3.0 dB berbanding konvensional Q-MOD pada frekuensi 0.4, 0.8, 1.95, 5.2 dan 5.8 GHz. Yang direka-reka Q-MOD mencapai P1 dB peningkatan lebih daripada 2.8 dB di bawah keadaan yang sama. Ia juga meningkatkan kuasa output dengan magnitud vektor ralat (EVM) sebanyak 3.0% (Pkeluar@EVM=3.0%), dan mencapai Pkeluar peningkatan lebih daripada 2.7 dB di bawah keadaan modulasi sistem wayarles UHF (OFDM/16QAM, 0.4 GHz), W-CDMA (HPSK/QPSK, 0.8 GHz/1.95 GHz) dan LAN wayarles (OFDM/64QAM, 5.2 GHz/5.8 GHz).
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Salinan
Shintaro SHINJO, Fumiki ONOMA, Koji TSUTSUMI, Noriharu SUEMATSU, Mitsuhiro SHIMOZAWA, Hiroshi HARADA, "0.4-5.8 GHz SiGe-MMIC Quadrature Modulator Employing Self Current Controlled Mixer for Cognitive Radio" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 12, pp. 3701-3710, December 2009, doi: 10.1587/transcom.E92.B.3701.
Abstract: A 0.4-5.8 GHz SiGe-MMIC quadrature modulator (Q-MOD) employing a self current controlled mixer for cognitive radio is described. The self current controlled mixer consists of a Gilbert cell mixer and a self current control circuit which is composed of both a current feedback circuit and an output buffer amplifier. The self current control circuit automatically controls the mixer current according to the output power level, and improves the linearity over wide radio frequency (RF) range. Simulation results show that the proposed Q-MOD realizes 1 dB compression point (P1 dB) improvement of more than 3.0 dB compared to the conventional Q-MOD at the frequencies of 0.4, 0.8, 1.95, 5.2 and 5.8 GHz. The fabricated Q-MOD achieves P1 dB improvement of more than 2.8 dB under the same condition. It also improves the output power with error vector magnitude (EVM) of 3.0% (Pout@EVM=3.0%), and achieves the Pout improvement of more than 2.7 dB under the modulation conditions of UHF wireless system (OFDM/16QAM, 0.4 GHz), W-CDMA (HPSK/QPSK, 0.8 GHz/1.95 GHz) and wireless-LAN (OFDM/64QAM, 5.2 GHz/5.8 GHz).
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.3701/_p
Salinan
@ARTICLE{e92-b_12_3701,
author={Shintaro SHINJO, Fumiki ONOMA, Koji TSUTSUMI, Noriharu SUEMATSU, Mitsuhiro SHIMOZAWA, Hiroshi HARADA, },
journal={IEICE TRANSACTIONS on Communications},
title={0.4-5.8 GHz SiGe-MMIC Quadrature Modulator Employing Self Current Controlled Mixer for Cognitive Radio},
year={2009},
volume={E92-B},
number={12},
pages={3701-3710},
abstract={A 0.4-5.8 GHz SiGe-MMIC quadrature modulator (Q-MOD) employing a self current controlled mixer for cognitive radio is described. The self current controlled mixer consists of a Gilbert cell mixer and a self current control circuit which is composed of both a current feedback circuit and an output buffer amplifier. The self current control circuit automatically controls the mixer current according to the output power level, and improves the linearity over wide radio frequency (RF) range. Simulation results show that the proposed Q-MOD realizes 1 dB compression point (P1 dB) improvement of more than 3.0 dB compared to the conventional Q-MOD at the frequencies of 0.4, 0.8, 1.95, 5.2 and 5.8 GHz. The fabricated Q-MOD achieves P1 dB improvement of more than 2.8 dB under the same condition. It also improves the output power with error vector magnitude (EVM) of 3.0% (Pout@EVM=3.0%), and achieves the Pout improvement of more than 2.7 dB under the modulation conditions of UHF wireless system (OFDM/16QAM, 0.4 GHz), W-CDMA (HPSK/QPSK, 0.8 GHz/1.95 GHz) and wireless-LAN (OFDM/64QAM, 5.2 GHz/5.8 GHz).},
keywords={},
doi={10.1587/transcom.E92.B.3701},
ISSN={1745-1345},
month={December},}
Salinan
TY - JOUR
TI - 0.4-5.8 GHz SiGe-MMIC Quadrature Modulator Employing Self Current Controlled Mixer for Cognitive Radio
T2 - IEICE TRANSACTIONS on Communications
SP - 3701
EP - 3710
AU - Shintaro SHINJO
AU - Fumiki ONOMA
AU - Koji TSUTSUMI
AU - Noriharu SUEMATSU
AU - Mitsuhiro SHIMOZAWA
AU - Hiroshi HARADA
PY - 2009
DO - 10.1587/transcom.E92.B.3701
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2009
AB - A 0.4-5.8 GHz SiGe-MMIC quadrature modulator (Q-MOD) employing a self current controlled mixer for cognitive radio is described. The self current controlled mixer consists of a Gilbert cell mixer and a self current control circuit which is composed of both a current feedback circuit and an output buffer amplifier. The self current control circuit automatically controls the mixer current according to the output power level, and improves the linearity over wide radio frequency (RF) range. Simulation results show that the proposed Q-MOD realizes 1 dB compression point (P1 dB) improvement of more than 3.0 dB compared to the conventional Q-MOD at the frequencies of 0.4, 0.8, 1.95, 5.2 and 5.8 GHz. The fabricated Q-MOD achieves P1 dB improvement of more than 2.8 dB under the same condition. It also improves the output power with error vector magnitude (EVM) of 3.0% (Pout@EVM=3.0%), and achieves the Pout improvement of more than 2.7 dB under the modulation conditions of UHF wireless system (OFDM/16QAM, 0.4 GHz), W-CDMA (HPSK/QPSK, 0.8 GHz/1.95 GHz) and wireless-LAN (OFDM/64QAM, 5.2 GHz/5.8 GHz).
ER -