Patent ID: 9692492
Date: 2017-06-27
CPC Classifications: H01Q,H04B,H04L

Claim:
1. A baseband modulation apparatus comprising: an antenna array including a plurality of antenna element and irradiating a beam space MIMO (Multi-Input Multi-Output) signal; a baseband unit generating a baseband signal; a band converter converting the baseband signal into a first band signal of a higher frequency than the frequency of the baseband signal; a load calculator calculating a load value of the plurality of antenna elements by using the baseband signal and setting the calculated load value to the antenna array; a signal changing controller setting a changing value for at least one value among the phase and the magnitude of the baseband signal by corresponding to the frequency of the baseband signal; and a signal change unit signal-changing at least one among the baseband signal and the first band signal by corresponding to the changing value, wherein the signal changing controller sets the changing value so that at least one of a base chap e and a magnitude change of the antenna signal irradiated through the antenna array is the same for each frequency of each baseband signal.