Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications

Table 1

E- and H-plane coupling (in dB) at the resonant frequency.

	HRF	LRF	Cross-freq. 𝑓12
	𝐶𝐻=−20	𝐶𝐻=−20
Air	𝐶𝑐=−33		𝐶𝑐|HRF=−25; 𝐶𝑐|LRF=−25
	𝐶𝐸=−40		𝐶𝐸|HRF=−29; 𝐶𝐸|LRF=−25
	𝐶𝐻=−40	𝐶𝐻=−40
Superstrate	𝐶𝑐=−45		𝐶𝑐|HRF=−43; 𝐶𝑐|LRF=−44
	𝐶𝐸=−33		𝐶𝐸|HRF=−40; 𝐶𝐸|LRF=−27