Satu metodologi terperinci dan bersistematik untuk merekabentuk penguat hingar rendah (LNA) induktif ternyahjana kaskod, juga dikenali sebagai topologi Padanan Masukan dan Hingar Serentak (SNIM),



A detailed and systematic methodology on the design of the inductivelydegenerated cascode LNA, also known as the Simultaneously Noise and Input

Matching (SNIM) LNA

Mohd. Noh, Norlaili

Repository@USM

English

2.1 A typical superheterodyne receiver with a quadrature demodulator. 9 2.3 Block diagram of low-IF receiver. 13 2.4 Block diagram of the wide-band IF receiver. 15 2.5 Simplified block diagram of a superheterodyne receiver.

Although DCR is known for its potential in fully implementing integrated blocks of the transceiver, there are a few design issues existing in DCR (Gharpurey et al.,

Another by-product of the mixing is the image signal. This signal can be represented by the following Equation 2.3 (Razavi,

Design, Simulation and Measurement Analysis on the S-parameters of an Inductivelydegenerated Common-source Open-drain Cascode Low Noise Amplifier.

During the design of the LNA, difficulties were met in understanding the noise analysis given in many textbook. Discussions on noise are extensive in books by Lee

Figure 2.1: A typical superheterodyne receiver with a quadrature demodulator

Figure 2.10: Interferer leakage due to large interferer that leaks from the mixer input to the LO port (Razavi,

Figure 2.2: A direct-conversion receiver

Figure 2.3: Block diagram of low-IF receiver (Pärssinen,

Figure 2.4: Block diagram of the wide-band IF receiver (Pärssinen,

Figure 2.5: Simplified block diagram of a superheterodyne receiver (Larson,

Figure 2.7: Image rejection versus interferer’s suppression (Razavi,

Figure 2.9: LO leakage due to imperfect isolation between the LO port and the inputs of the LNA and mixer

Flicker noise arises from random trapping of charge at the oxide-silicon interface of MOSFETs. Represented as a voltage source in series with the gate, the noise density is given by (Razavi,

From the block diagram in Figure 2.3, the signal is divided into quadrature branches in the first downconversion. This is to separate the unwanted image from the desired channel (Pärssinen,

Inductive Degeneration 0.13 um CMOS Low Noise Amplifier Utilizing On-Chip Inductors at 2.4 GHz.

leakage As has been mentioned previously, this leakage results in dc offsets (Ryynanen,

Mixing will produce components at ω ±ω IM LO(Razavi,

Referring to Equation (2.3), the image signal frequency, ωim, is located two times the intermediate signal frequency, ωIF 2 , away from the frequency of the signal of interest, ωRF (Razavi,

Study and Analysis of a 0.18 um Single-ended Inductively Degenerated CS Cascode LNA Under Post-layout Corner Conditions.

Systematic Width Determination for the Design of Power-Constrained Noise Optimization Inductively-Degenerated Low Noise Amplifier. Submitted for review to the Microelectronics International,

Development Of Inductively-Degenerated LNA For W-CDMA Application Utilizing 0.18 Um RFCMOS Technology