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.
A novel energy-efficient tunable impulse radio ultra wide band (IR-UWB) pulse generator (PG) for the high data rate 3.1 – 7.5 GHz band applications is proposed. Glitch generator, switched ring oscillator, buffer and pulse shaping filter are the key components. The circuit is scalable both in bandwidth and center frequency. The glitch generator combines falling edge of the input signal and its delayed...
A CMOS standard ring oscillators with 5 and 7 stages are examined in 0.35µm and 0.18µm technologies. For optimum number of ring oscillator stages (N = 5) the operating frequencies of 1.62 GHz and 3.07 GHz are obtained in 0.35µm and 0.18µm technologies, respectively. The 5-stage ring oscillator topology is further investigated while changing power supply and temperature. Their influence on oscillating...
Design of an all-digital 5th derivative Gaussian Pulse Generator (PG) for the full band (3.1GHz–10.6 GHz) impulse-radio ultra-wideband (IR-UWB) transmitter is investigated in this paper. The pulse generator is tunable in both, the amplitude and the duration of the pulses. As the impulse radio-based generator operates in burst mode with low duty cycle it has low power consumption with no static power...
In addition to LNA (low noise amplifier) noise figure, gain and input matching, its linearity is also an important consideration. An LNA must amplify signal without adding too much noise but also remain linear even when strong signals are received. In the narrowband LNA topology, good values of S-parameters and noise performance are achieved at the expense of linearity. In order to improve LNA linearity,...
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.