Download e-book for kindle: Current Trends and Challenges in RFID by Cornel Turcu (Ed.)

By Cornel Turcu (Ed.)

ISBN-10: 953307356X

ISBN-13: 9789533073569

Show description

Read or Download Current Trends and Challenges in RFID PDF

Best electronics: radio books

Download PDF by Jon Louis Bentley: Writing efficient programs

Writing effective courses (Prentice-Hall software program sequence)

Download e-book for iPad: Radiologia Normal Findings in CT and MRI Torsten Moeller by Torsten Moeller, Emil Reif

The major for any starting radiologist who needs to acknowledge pathological findings is to first collect a capability to differentiate them from common ones. This awesome consultant provides starting radiologists the instruments they should systematically procedure and realize common MR and CT photos.

Additional info for Current Trends and Challenges in RFID

Example text

Second, it should be a low power implementation with high power gain. 13a specification [1] [2], it is required a power gain of at least 15dB with less than 3dB noise Fig. Since, one of the biggest applications of UWB systems is low-power implementation, the LNA should be able to operate in low supply voltage. The third issue is gain flatness to avoid any signal distortion over such a wide bandwidth. In terms of wideband impedance matching, the most popular methods are the feedback topology, the distributed impedance matching, the BPF configuration matching network, and the common-gate topology.

Fig. 4. Common-source stage with RC-load. When no inductor is used, the only available load is RC-load, thus the load amplifier becomes: ZL  R 1  RCs (1) 19 Main RF Structures The circuit topology of Fig. 4 is well known and corresponds to a low pass filter configuration. The frequency response of this filter is shown in Fig. 5 and its gain is given by: Av   gm R 1  RC (2) Fig. 5. Frequency response of Fig. 4. Hence, the DC gain is -gmR and the bandwidth is ω1 = 1/RC. The frequency ω1 is called “uncompensated bandwidth”.

Condition i-v characteristic Output resistance vDS ≥ vGS - Vt. 1 W iD  nC ox ( L 2 1 V ro   A  iD iD v gm  2 nC ox Saturation Transconductance GS  Vt )2 W iD L W ( GS  Vt ) L iD gm  2 ( GS  Vt ) v gm  nC ox v Triode  Body transconductance gmb   gm  Condition vDS < vGS - Vt. i-v characteristic iD  nC ox Output resistance rlinear  Threshold voltage Vt  Vt 0   [ 2 f  VSB  2 f ] v W [( L DS iD 2 2 f  VSB v GS v  Vt )  [ nC ox W ( L gm DS v GS  v 2 DS 2 ]  Vt )]1 Table 1.

Download PDF sample

Current Trends and Challenges in RFID by Cornel Turcu (Ed.)


by Kenneth
4.5

Rated 4.67 of 5 – based on 20 votes
 

Author: admin