A wireless communication system comprising: a first communication apparatus including a first antenna and a second antenna ; a second communication apparatus including a third antenna and a fourth antenna ; a first communication control means configured to control wireless communication based on electromagnetic field coupling between the first antenna and the third antenna ; and a second communication control means configured to control wireless communication based on electromagnetic field coupling between the second antenna and the fourth antenna , a support means configured to support the first communication apparatus and the second communication apparatus in such a manner that at least one of the first communication apparatus and the second communication apparatus can be moved relatively with each other while maintaining a positional relationship, in which wireless communication based on electromagnetic field coupling between the first antenna and the third antenna can be carried out, and wireless communication based on electromagnetic field coupling between the second antenna and the fourth antenna can be carried out, the first antenna faces the third antenna and the second antenna faces the fourth antenna , and an electromagnetic signal received by the second antenna from the first antenna has weaker strength than an electromagnetic signal received by the third antenna from the first antenna ; and a movement control means configured to move the at least one of the first communication apparatus and the second communication apparatus relatively to each other characterized in that the first communication control means controls the wireless communication by differential transmission of a baseband method between the first antenna and the third antenna, and the second communication control means controls the wireless communication by the differential transmission of the baseband method between the second antenna and the fourth antenna. a first communication apparatus including a first antenna and a second antenna ; a second communication apparatus including a third antenna and a fourth antenna ; a first communication control means configured to control wireless communication based on electromagnetic field coupling between the first antenna and the third antenna ; and a second communication control means configured to control wireless communication based on electromagnetic field coupling between the second antenna and the fourth antenna , a support means configured to support the first communication apparatus and the second communication apparatus in such a manner that at least one of the first communication apparatus and the second communication apparatus can be moved relatively with each other while maintaining a positional relationship, in which wireless communication based on electromagnetic field coupling between the first antenna and the third antenna can be carried out, and wireless communication based on electromagnetic field coupling between the second antenna and the fourth antenna can be carried out, the first antenna faces the third antenna and the second antenna faces the fourth antenna , and an electromagnetic signal received by the second antenna from the first antenna has weaker strength than an electromagnetic signal received by the third antenna from the first antenna ; and a movement control means configured to move the at least one of the first communication apparatus and the second communication apparatus relatively to each other characterized in that the first communication control means controls the wireless communication by differential transmission of a baseband method between the first antenna and the third antenna, and the second communication control means controls the wireless communication by the differential transmission of the baseband method between the second antenna and the fourth antenna. <EOS>