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Impedance Loaded Omni-directional Left-handed Loop Antenna

An omni-directional left-handed loop antenna was proposed by Iizuka and Hall in [1].  The antenna consists of wires and LC lumped elements to load the wires appropriately.  Figure 1 shows the geometry of this antenna.

Figure 1: Configuration of antenna
model.jpg

The loop antenna was simulatd with LC loads placed as indicated to compute the S-parameters for the antenna.  Figure 2 draws a comparison between the published and computed results for S-parameters.

Figure 2: S-parameter comparison
(a) Published results [1]
paper_S11.jpg
(b) Simulated results
simulate_S11_magnitude.jpgsimulate_S11_phase.jpg



References


[1]
 H. Iizuka, P.S. Hall, "Omnidirectional Left-Handed Loop Antenna," IEEE Antennes and Propagation Society International Symposium, July 2006.