In today’s modern systems on chip (SOCs), a crucial power management circuit is the low-dropout (LDO) regulator. Of course, need for supply voltage regulation, goes back many years in past since circuits have been designed. Today, LDO based regulators are frequently used number of mixed-signal to produce local voltages that feed different building blocks. LDOs try isolate noise and from global ...

In this paper, an integrated 2.2–5.7GHz multi-band differential LC VCO for multi-standard wireless communication systems was designed utilizing 0.35mm SiGe BiCMOS technology. The topology, which combines the switching inductors and capacitors together in the same circuit, is a novel approach for wideband VCOs. Based on the post-layout simulation results, the VCO can be tuned using a DC voltage ...

This thesis contributes to the computer-aided design (CAD) of spiral inductors and LC resonators with spiral inductors exploiting full-wave electromagnetic (EM) analysis. The spiral inductor is widely used in radio frequency integrated circuits (RF ICs), such as low noise amplifiers (LNA) and voltage controlled oscillators (VCO). The design of spiral inductors has a direct influence on the perf...

This paper presents the design and the implementation of a fully monolithic coupledoscillator array, operating at 6 GHz with close to zero coupling phase, in 0.25 μm BICMOS SiGe process. This array is made of four LC-NMOS differential VCOs coupled through a resistor. The single LC-NMOS VCO structure is designed and optimized in terms of phase noise with a graphical optimization approach while s...

This paper presents the integrated circuit design of an ultra-wideband (UWB) transceiver for a wireless endoscope that enables real-time diagnosis with high resolution images. The implemented UWB transceiver is a non-coherent transmit reference (TR) architecture with differential binary phase shift Keying (DBPSK) modulation. All-digital pulse generator (PG) and merged radio frequency (RF) front...

A new CMOS LC Voltage Controlled Oscillator (VCO) for IEEE 802.11a application with low phase noise and consumed power less than 1mW is presented. This circuit was taped out by TSMC 0.18um 1P6M process. The measured phase noise is -115-88dBc/Hz at 1MHz offset at the operation frequency of 5.815GHz. And the dc core current consumption is 0.71mA at a supply voltage of 1.4 V. Its figure of merit (...

4 2.4GHz LC voltage controlled oscillator is designed and o p timized via linear programming and implemented in a 0 . 3 5 ~ ~ 1 RF BiCh4OS process technology. Our design methodology provides an insight to choosing design variables given with several constraints such as voltage swing, tuning range, and start-up condition. The on-chip spiral inductors used are modeled and optimized by a 30 induct...