International Journal of Antennas and Propagation / 2017 / Article / Fig 7

Research Article

A Frequency-Tunable SRR-Adopted Two-Pole Waveguide Filter Operating below the Cutoff Frequency

Figure 7

Different orientation of two rings: (a) 180° and 0°, (b) 0° and 180°, (c) 135° and −45°, (d) 135° and 45°, (e) 90° and 90°, and (f) 90° and −90°.
(a)
(b)
(c)
(d)
(e)
(f)