not intended to be limiting rather the general principles set forth herein are considered to be merely illustrative of the scope of the present invention and it is further understood that numerous changes may be made without straying from the scope of the present invention the present invention will now be described with reference to the drawings referring now to fig1 a complementary dual antenna system 10 is shown according to the present invention the dual antenna system consists of a first antenna element 20 and a second antenna element 30 the first antenna element 20 has a frequency selective surface fss 40 the fss 40 is formed of a plurality of frequency selective elements resonant at a first frequency such as 40 a 40 s there are various known types of frequency selective elements also commonly termed resonators the shapes of these elements include rings cross dipoles square loops jerusalem crosses and tripoles and they are constructed from metallic elements in fig1 the fss 40 is formed from a grid pattern of interlaced resonator crosses 40 a 40 s typically the resonator crosses 40 a 40 s are sized within the fss 40 to resonate at the desired first frequency the surface of the resonator crosses reject transmission through the fss signals of certain frequencies by reflecting those signals the fss 40 may be called a band reject surface the fss 40 can also be constructed to pass signals of a certain frequency band the grid pattern of interlaced resonator crosses 40 a 40 s are formed of an electrically conductive metal layer the metal used may be a copper aluminum gold or any other conductive metal in fig1 the second antenna element 30 has a frequency selective surface 50 the fss 50 is formed of an interlaced.