The design of low power ultra wideband transceiver

... THE DESIGN OF LOW POWER ULTRAWIDEBAND TRANSCEIVERS Wang Lei (B Sci, Beijing Technology and Business University, China) (M Eng, Tsinghua University, China) A THESIS SUBMITTED FOR THE DEGREE OF ... Organization of The Thesis The following thesis is organized as follows Chapter will give a brief literature review on the architectures of IR UWB beamforming transmitter and...

Ngày tải lên: 10/09/2015, 09:21

... for Output Network and Power 133 Appendix B Sub-Functions 133    iv    SUMMARY This thesis presents the design of a low- power 2.4-GHz BPSK/OOK transceiver for shortdistance wireless ... dBm output power 15    The absolute power consumptions for sensor RX should be below mW which is comparable to the transceivers for low- power sensors as reported in [17, 21, 24,...

Ngày tải lên: 09/09/2015, 18:49

... WEI Degree: Master of Engineering Department: Electrical and Computer Engineering, NUS Thesis Title: Design of Low Power CMOS UWB Transceiver ICs Abstract Two non-coherent UWB transceivers for ... UWB detector 50 Fig 4.1: Low power burst mode UWB transceiver architecture 51 Fig 4.2: Measured result for low power burst mode UWB transceiver 52 Fig 4.3: Chip...

Ngày tải lên: 04/10/2015, 15:45

... analysis and design of ultra- wideband (UWB) radio transceivers and arrays UWB radio transceivers can be contrasted from their narrowband radio counterparts by the signals that they transmit and ... time -of- arrival standard deviation at ± 10° for six cases of SNR 53 3.3 Theoretical and experimental time -of- arrival standard deviation at ± 20° for six cases of SNR 54 3....

Ngày tải lên: 13/09/2015, 20:08

... notice that this time the tolerance mask is always touched by the magnitude response This can be traced back to the fact that, for the SFB, the steps of the tolerance mask are much smaller, not ... in the passband and the transition bands As the objective function to be minimised we adopt a particular representation of the group delay [20], while the stopband m...

Ngày tải lên: 21/06/2014, 19:20

... advantages of the CMOS image sensors over CCD based imagers is the lower power consumption of CMOS circuits The usage of closed loop opamps in place of simpler two transistor source follower bu ... architecture of the linear image sensor is presented in this chapter Even though, the design issues of CMOS image sensors are presented with respect to area format...

Ngày tải lên: 28/08/2014, 02:29

... This page intentionally left blank Design and Implementation of Low Power MAC Protocol for Wireless Body Area Network by Pan Rui Submitted to the Department of Electrical and Computer Engineering ... fulfillment of the requirements for the degree of Doctor of Philosophy Abstract A wireless body area network (WBAN) is a network consists of wearable...

Ngày tải lên: 09/09/2015, 08:16

... Find the soil pressures at the mat invert Find the centroid of the column loads (location of the resultant R) with respect to a new x’y’ coordinate system located at the lower left corner at mat, ... acting as stiffness for the mat grillages Details of a mat foundation, serving as the slab of a one-story basement Compensated mat foundations If zero settlem...

Ngày tải lên: 16/10/2012, 10:43

... of flow and binary capacity depends on the size of the rod when compared to the size of the handle There is an advantage in using the largest possible rod and in reducing the length of the handle ... Figure Variation of discharge and binary with two and three pistons of double or single effect out of phase of 90º and 120º 3.2 Positive displacement pumps This engine c...

Ngày tải lên: 05/09/2013, 15:28

... accuracy of the workpiece mainly depend on the axial rigidity of the spindle headstock and of the rotary table Therefore, the rigidity of the thrust bearings is especially important To increase the ... common: rolling bearings For this reason the brief texts concentrate on the rolling bearing aspects of the applications The operation of the machine al...

Ngày tải lên: 25/12/2013, 05:17

... common: rolling bearings For this reason the brief texts concentrate on the rolling bearing aspects of the applications The operation of the machine allows conclusions to be drawn about the operating ... is made up of the weight of the rotor and the two variable top and bottom fan impellers as well as the thrust of these fan impellers They are supported by...

Ngày tải lên: 25/12/2013, 05:17

... with the system Ranking of Redesign Alternatives Another area requiring research attention in the context of generation of redesign solutions (design advisor) is the ranking of the generated redesign ... Evaluation Typically, the designer designs a product with minimal knowledge about the capabilities and limitations of the manufacturing technology The designer th...

Ngày tải lên: 19/01/2014, 18:20

... know the prices of chemicals in the various markets and the operating costs of processes, the problem is then to decide the operating level of each process and amount of each chemical in the list ... for the production of each chemical We might then contemplate the in-house production of some of the required ingredients, forcing us to consider another tier of...

Ngày tải lên: 19/01/2014, 18:20

... accuracy of the workpiece mainly depend on the axial rigidity of the spindle headstock and of the rotary table Therefore, the rigidity of the thrust bearings is especially important To increase the ... is made up of the weight of the rotor and the two variable top and bottom fan impellers as well as the thrust of these fan impellers They are supported by t...

Ngày tải lên: 23/01/2014, 04:20

... roughening of the surfaces (increased running noise) Work end Bearing dimensioning The size of the bearings is dictated by the shaft diameter, which in turn is based on the anticipated vibrations The bearing ... roller bearing FAG NU1026M at the drive end is the floating bearing Heat expansion in the axial direction is freely accommodated in the bearing The...

Ngày tải lên: 23/01/2014, 04:20