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.
This paper describes a monolithic integrated single-chip transceiver intended for impulse radio (IR) — Ultra-wide Band (UWB) applications compliant to the IEEE 802.15.4a standard. The transceiver operates in the higher UWB band on four different channels, which fit into the European spectral mask (defined by the ECC). In accordance to the standard, several data rates up to 27.24 MB/sec have been implemented...
This paper describes a monolithic integrated singlechip transceiver intended for impulse radio (IR) — Ultra-wide Band (UWB) applications compliant to the IEEE 802.15.4a standard. The transceiver operates in the higher UWB band on the mandatory channel #9 (7.9872 GHz). The implemented nominal data rate is 850 kb/sec. The presented chip consists of the entire RF-front-end, 6bit-resolution successive...
This paper presents a monolithically integrated ultra wideband direct up conversion transmitter designed in accordance with IEEE 802.15.4a standard. The transmitter operates in the higher UWB band in eight communication channels. It supports the burst position and the binary phase-shift keying modulation schemes and provides a modulated impulse sequence with a pulse repetition frequency up to 499...
This paper describes a monolithic integrated single-chip transceiver intended for Impulse Radio (IR) Ultra-wide Band (UWB) applications compliant with the IEEE 802.15.4a standard. The transmitter is designed to operate in the upper UWB band on the mandatory channel #9 (7.9872 GHz). In order to assure compliance with the standard, the transceiver components are designed towards higher degree of integration,...
This paper describes a monolithic integrated transmitter intended for impulse-radio (IR) Ultra-wide Band (UWB) applications compliant to the IEEE 802.15.4a standard. The transmitter operates in the higher UWB band on the communication channels #5, #6, #8 and mandatory channel #9. The impulse generation is based on the gated oscillator principle allowing required on-off keying (OOK) as well as binary...
In this paper the influence of the external load on the key parameters of the commonly used cross-coupled LC VCO architecture is investigated. It is shown, that even high ohmic external load decreases the impedance of the resonator, limits the frequency tuning range, degraded the phase noise and increases the power dissipation of the structure. Additionally, based on the carried out analyses, the...
This paper describes an ultra-low power differential 7th order active-RC low pass filter (LPF). The proposed filter is ready for the use in Impulse-Radio (IR) Ultra-Wideband (UWB) IEEE 802.15.4a standard compliant transceivers. The circuit is composed of three biquadratic and one first order filter sections. The structure of the operational amplifier (op amp) is adopted to ensure high linearity demands...
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.