This thesis describes a design of CMOS wideband low noise amplifier for DVB-H receiver, which can provide from 470MHz to 770MHz in channel bandwidth. In the thesis, the fundamentals of the design of RF circuits are introduced, and design techniques of wideband amplifier are intensively presented. Also, we will introduce the new dynamic bleeding mixer design based on TSMC 0.18 um technology.
First, wideband power constrained simultaneous noise and input matching technique is introduced. With 470~770 MHz wide band noise matching can lead to improve the noise performance compare to the previous arts. The noise figure of proposed PCSNIM LNA shows sufficient input matching, enough high gain and low noise performance. Proposed PCSNIM LNA is implemented by TSMC 0.18$\mum$ foundry. The measurement NF, 1.83~2.74dB, is similar with simulation result. The power consumption is 3mA from 1.8V supply, respectively.
Second, new dynamic current bleeding mixer is proposed with adapting cross-connected PMOS transistors. The advantage of the proposed mixer is analyzed and compared with conventional mixer in terms of voltage conversion gain and flicker noise. The measurement results show that voltage conversion gain is about 16.8dB and reduced the flicker noise 9.8 dB at 56 kHz compared with the conventional double balanced mixer. The new dynamic bleeding current mixer is implemented in 0.18um CMOS technology while dissipating only 2.2mA from 1.8V supply.
Finally, a proposed RF front-end DVB-H receiver, which consists of a low noise amplifier and the new dynamic bleeding current injected mixer, is implemented using $0.18\microm$ CMOS technology. The proposed RF front-end receiver supports VHF, UHF and L bands (170~240MHz, 470 ~ 770 MHz, 1452~1492MHz and 1670~1675MHz) as T-DMB/DVB-H dual mode receiver in RFIC tuner. The low noise amplifier, in the RF front-end receiver, provides not only sufficient high gain and 50 ohm wideband input matching but also low noise figure over ...