| Title |
Design of a LNA-Mixer with on-chip balun for 2.45GHz RFID Applications |
| Authors |
임태서(Lim, Tae-Seo) ; 고재형(Ko, Jae-Hyeong) ; 정효빈(Jung, Hyo-Bin) ; 김형석(Kim, Hyeong-Seok) |
| Keywords |
LNA-Mixer ; RFID ; Active balun |
| Abstract |
This paper presents the design and analysis of LNA-Mixer for 2.45GHz RFID reader. The LNA is implemented by PCSNIM method for low power consumption. The Mixer is implemented by using the Gilbert-type configuration, current bleeding technique and the resonating technique for the tail capacitance. The connection between the two designed circuits is made by active balun. This LNA-Mixer has about 22dB gain and 8.5dB Noise Figure for -50dBm input RF power, LO power is 0dBm, RF frequency is 2.45 GHz and IF frequency is 100kHz. The layout of LNA-Mixer for one-chip design in a 0.18-um TSMC process has 2.5mm×1.0mm size. |