Design of Power Amplifier with On-Chip Matching Circuits using CPW Line Impedance (K) Inverters
نویسنده
چکیده
Recently, spiral inductors have widely been used in the design of matching circuits of a wireless transceiver. However, such elements usually have low quality factor (Q) and may encounter the self-resonance in microwave-frequency band which permits its use in higher frequencies, and on the other hand, they occupy the large on-chip space. This paper presents a new design theory for the impedance-matching circuits for a single-chip SiGe BiCMOS receiver front-end for 5 GHz-band WLAN. The presented matching circuits are composed of conductor-backed coplanar waveguide (CPW) meanderline resonators and impedance (K) inverter. The prototype power amplifier (PA) is fabricated and measured. A few of the measured results to verify the design theory are presented. Key-Words: CPW Line, Impedance (K) inverters, Impedance-matching circuits, Transmission-line theory.
منابع مشابه
Development of Cmos Coplanar Waveguide Matching Circuit for Rf Front-end
For realizing a single chip microwave front-end, we studied the new design theory of impedance matching circuits for a Si-CMOS low noise amplifier (LNA) or power amplifier (PA), which are composed of coplanar waveguide (CPW) meanderline resonators and impedance inverters. We also present the simulated performances of CMOS-LNA or PA connected with input and output matching circuits. Finally, we ...
متن کاملApplications of On-Chip Coplanar Waveguides to Design Local Oscillators for Wireless Communications System
On-chip distributed transmission line resonators in CMOS technology have become the interest of research subjects recently (Ono et al. 2001; Umeda et al., 1994; Kanaya et al., 2006; Wolf, 2006) because of their size which becomes more compact, as the frequency of application increases. Among the various transmission lines, coplanar waveguide (CPW) has more engineering applications (Toyoda, 1996...
متن کاملDesign and Verification of On-Chip Impedance-Matching Circuit Using Transmission-Line Theory for 2.4 GHz-Band Wireless Receiver Front-End
Recently, spiral inductors have widely been used instead of resistors in the design of matching circuits to enhance the thermal noise performance of a wireless transceiver. However, such elements usually have low quality factor (Q) and may encounter the self-resonance in microwave-frequency band which permits its use in higher frequencies, and on the other hand, they occupy the large on-chip sp...
متن کاملA Coplanar Waveguide On-chip RF Choke for WLAN RF Circuits
A novel on-chip RF choke at 5 GHz is designed and measured for a class A operating Wireless LAN RF power amplifier (PA). The coplanar waveguide (CPW) based on-chip RF choke is implemented as an alternative component to inductors provided by the 0.35 μm SiGe BiCMOS technology. The CPW RF choke is designed at 5 GHz, and has a length of 1600 um and loaded with a capacitance of 0.95 pF. The measure...
متن کاملDesign of impedance matching circuits for RF energy harvesting systems
This paper presents a systematic design methodology for impedance matching circuits of an RF energy harvester to maximize the harvested energy for a range of input power levels with known distribution. Design of input matching networks for RF rectifier differs from those for traditional RF circuits such as low-noise amplifier because the transistors in the RF rectifiers operate in different reg...
متن کامل