@article{oai:miyazaki-u.repo.nii.ac.jp:00002407,
 author = {中島, 雄太 and Nakashima, Yuta and 淡野, 公一 and Tanno, Koichi and 石塚, 興彦 and 外山, 貴子 and Toyama, Takako and 中島, 雄太 and Nakashima, Yuta and Ishizuka, Okihiko},
 journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki},
 month = {Aug},
 note = {Recent years, the wireless communication systems has been changing rapidly. In order to realize the portable
electric devices, the miniaturization, light weight and low cost are important issues, and longer operating life of
the battery is also desired. The implementation of RF analog circuits and baseband digital circuits in the same
chip by using CMOS technology leads to reduce size, weight, cost and power consumption. However, it is very
difficult to realize it. In this paper, an even-harmonic mixer using LC tanks instead of the load and the current
source is proposed. The proposed mixer has advantage of low-voltage operation and large conversion gain.
Next, for the proposed mixer, 45° phase shifter with the frequency doubler is proposed. The proposed phase
shifter has advantage of low-voltage operation. Furthermore, the delay error is minimized by the same circuit
configuration. In order to confirm the proposed mixer and phase shifter, the combined circuits are evaluated
Simulations of the circuits demonstrate the conversion gain of -17.3 dB and maximum phase error of 0.1° with
VDD=1.5 V.},
 pages = {135--142},
 title = {ダイレクトコンバージョン方式受信機におけるミキサの設計と解析},
 volume = {34},
 year = {2005},
 yomi = {ナカシマ, ユウタ and タンノ, コウイチ and イシズカ, オキヒコ and トヤマ, タカコ and ナカシマ, ユウタ}
}