Tonehole radiation directivity: A comparison of theory to measurements

Tonehole Modeling (fixed state)

Keefe (1981) frequency-domain characterization:

**Figure 1:** T section transmission-line element representing the tonehole.
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Two-port scattering junction [Scavone 1997; Smith & Scavone 1997]:

**Figure 2:** Tonehole two-port scattering junction.
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