Figure 3.

Contour plot of normalized B₁ field magnitude $B_{\mathrm{norm}}=|{\vec{B}}_{\mathrm{net}}|/|{\vec{B}}_{\mathrm{appl}}|$ as a function of loop reactance and resistance at 127.8 MHz. The unity contour indicated by the arrow is where $|{\vec{B}}_{\mathrm{net}}|=|{\stackrel{\rightharpoonup }{B}}_{\mathrm{appl}}|$ for a particular value of X and the full range of R. The contour interval is 5%.