The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Aiming at the fast and accurate measurement of the output frequency of quartz resonant dew point sensor, there is developed a 1-bit fourth-order bandpass (BP) sigma-delta (ΣΔ) modulator to be applied in it. The automatic design and optimization have been both accomplished in the noise transfer function (NTF) and the architecture of 1-bit fourth-order bandpass (BP) sigma-delta (ΣΔ) modulator. It improved...
This paper presents a 60-GHz direct-conversion transceiver using 60-GHz quadrature oscillators. The 65nm CMOS transceiver realizes the IEEE802.15.3c full-rate wireless communication for every 16QAM/8PSK/QPSK/BPSK mode. The maximum data rates with an antenna built in a package are 8 Gbps in QPSK mode and 11 Gbps in 16QAM mode within a BER of < 10−3. The transceiver consumes 186mW while transmitting,...
In 60 GHz radios, at least 9 GHz flat gain is needed for the whole band for 16-QAM modulation. A 23 GHz 3 dB bandwidth, 6.3 dB to 17.5 dB variable gain, less than 4.3 dB NF, −7.7 dBm IIP3, four-stage common source LNA is proposed in this paper. The LNA uses guided micro-strip transmission line to realize simple input and inter-stage impedance matching networks. The prototype LNA is implemented in...
An integrated 6.2-9.5GHz CMOS UWB receiver for WiMedia MB-OFDM is proposed. The fully differential receiver consists of a wideband LNA and a down conversion mixer with high and low gain mode. A low-pass filter and a programmable gain amplifier are also included. The chip was fabricated in TSMC 0.13-μm RF CMOS process. Measurement results show that the receiver achieves voltage gain from 21dB to 63dB...
An analog baseband chain for WiMedia MB-OFDM UWB and China UWB standard is presented. The baseband chain consists of a fifth-order chebyshev type low pass filter with two switchable cut-off frequencies. A programmable gain amplifier based on enhanced source degeneration architecture is also included. The chip was fabricated in TSMC 0.13-μ RF CMOS process. Measurement results show that the analog baseband...
Practical characterization of active and passive devices in CMOS technology is presented in this paper for designing millimeter-wave power amplifiers. Detailed modeling strategy for transmission line, T-junction, and transistor is explained with some actually-designed millimeter-wave amplifiers. A 4-stage PA is implemented in 65 nm CMOS process. A 20 dB power gain and a 9.9 dBm 1 dB output compression...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.