Kauto Engineering Main Page
KUATO ENGINEERING
 
 
  Other Antennas
 
 
 
 
 
  - Modulation
 
  - Pulse Shaping
 
 
 
 
   
   

 

     
 
Pulse Shaping
 
 
 
 

The restriction for designing the pulse is that digital PAM chip sets are incapable of generating
pulses with a large time supportmore therefore in order to get cheap receivers/transmitters, the
time pulse is limited to 4Tb.
A Root Raised Cosine shape is used:

Root Raised Cosine

 
 


To best fit the frequency band [2:110GHz-2:210GHz], the following parameters are required:

  • Maximum frequency: 10MHz
  • k: 0.93
  • Carrier frequency: 2.16GHz
 
     
 

Baseband Signal

The time supported of the pulse is limited to 4Tb.

 
 


Figure 4: Pulse shape
Figure 4: Pulse shape
 
 
The bandwidth of the baseband signal is 20MHz.
 
 


Figure 5: Bandwidth
Figure 5: Bandwidth

 
     
 

Passband Signal

 
 

Figure 6: Modulated pulse shape
Figure 6: Modulated pulse shape
 
 

Figure 7: Passband signal
Figure 7: Passband signal