What is Bluetooth? Bluetooth is an industrial specification for Wireless Personal Area Networks (WPANs) that enables voice and data between devices via a link on radio frequency in the ISM band of 2.4 GHz. The main objectives to be achieved with this standard are: Facilitate communications between mobile and fixed. Remove cables and connectors between [...]
A Bluetooth profile is the specification of a high-level interface between devices to use Bluetooth. To use some Bluetooth device must support certain profiles. The profiles are general descriptions of behavior that the devices can be used to communicate formally to favor a unified use. How you use the Bluetooth capabilities are therefore based on [...]
In most cases, the transmitter and receiver of the radar electronics and share is a common antenna. This is called monostatic. Nothing prevents, however, consider a radar system where the transmitter and receiver are separated, a situation called bistatic radar, multistatic configuration or even if you have a separate transmitter and multiple receivers. One other [...]
The radar antenna is mounted on a lateral face of a carrier (airplane or satellite). She has an azimuthally opening large enough (several degrees) in the direction of movement and can move laterally on the horizon to the vertical which gives a fairly low resolution. The return time of echoes is carried out at different [...]
In general, the signal from the transmitter moves in a waveguide in the transmitting antenna. It is however possible to transform the waveguide antenna itself by punching slots. The interference between the various slots are creating a scattering pattern with a strong central peak and secondary peaks lower in the direction along which the slots [...]
