Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

detecting communication divece using couple antenna

Status
Not open for further replies.

BMWE

Member level 2
Joined
Apr 4, 2005
Messages
51
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,585
hi

it's known that using couple of antenna it's possible to detect the location of some communication device (like the cell-phone).

i'm looking for the algorithm or for some other information about it (if having some implemented code it may help too)
 

Hi,
This measurement envyronmet called: GDO...
(GridDipOscillator, & as hes name tels us, it is a very old, so ca. 80-90 years, technique)
What you need:
a sweeped signal generator (in your checked fequencies) with a relative small, but wideband coil as antenna, than if you are with them over your TX/RX(exactly a tuned-swinging coil) you has a dip (smaller signal) on your "antenna coil"/generator output, what you must know to detect.
Often works metal detectors on the same princip.
As you know; today are most/much RFID devices with same (called ASK) modulations in work too...
K.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top