Top Layer:Copper Vias Ground 1cm 2 p (b) Layer:Copper (a) LR/2 LR/2 LR/2 LR/2 2CL 2CL CL L 2L3 R12 CR/2 (a) b OM=BPM=BMp=TT 3p= nrJn=0,±1，.，±(M-l)forT-type unit cell Mn=0,±1，.，±M for r-type unit cell. Y.Dong,T.Itoh,Miniaturized substrate integrated waveguide slot antennas based on negative order resonance,IEEE Trans.Antennas Propag.,vol.58,no.12,pp.3856-3864,Dec.2010
Y. Dong ，T. Itoh, Miniaturized substrate integrated waveguide slot antennas based on negative order resonance, IEEE Trans. Antennas Propag., vol. 58, no. 12,pp. 3856–3864, Dec. 2010
16 Dispersion Curve of the Unit Cell 15 ----Dispersion Curve of the Equivalent Circuit 0 A工O 432 -14(7.26 …Simulation RH Region GHz) Measurement 10 (8五 04fi20 0 -10 -5 9 8 -10 -Ist Resonance 1t16.19 LH Region -15 -15 Narrow-band GHz) Look 6 -20 5 -20 57.07.5 8.0 (GHz) 0 π/4 π/2 3π/4 6 8 10 12 14 16 18 即 Frequency (GHz) One-stage Two-stage Open-ended Ant. open-ended Ant. Antenna Size 0.265入0×0.318入0 0.4810×0.33g Meas.Bandwidth(-10 dB) 1.52% 1.88% Sim.Peak Gain 2.93 dBi 5.29 dBi Sim.Efficiency 0.818 0.922 Meas.Directivity 4.323dBi 5.49 dBi Meas.Peak Gain 3.16 dBi 4.95 dBi Meas.Efficiency 0.765 0.883