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A microstrip-fed slot antenna was designed using Antenna Magus for the following specifications:
Naturally, however, there is a higher cost associated with a waveguide fed slot array antenna as it tends to require a more complex design and manufacturing process. An example of this can be seen below where an 8 x 10-element slot array (with an additional single 10-element array to one side) is fed from substrate-integrated-waveguide. Antenna Design The dimensions of the rectangular patch with T-slot antenna is 108 X 52 mm2. The height (h) of air substrate between patch and ground plane is 7 mm. The dimension of the T-slot is as shown in the Figs. The probe is fed at (X = 0, Y = -10 mm) from the patch centre. Antennas are fed with SMA coaxial probe of 50Ω characteristic. The proposed system is designed with Multiple L-slot micro-strip patch antenna and the antenna is fed with co-axial feed. Insertion of multiple-slots in a patch helps to overcome the problem of bandwidth limitation. The proposed antenna can be used for WLAN and WiMAX applications. The stacked patch arrangement, consisting of one fed patch on one layer and a parasitic patch on another layer, is one of the most popular wideband microstrip antenna. The parasitic patch introduces a second resonance.
- 5 GHz centre frequency
- 50 Ω input impedance
- FR4 substrate, ε = 4.35, height = 1.5mm
Dimensions of the slot and feed-line are:
Patch Antenna Design Calculator
- Ws = 743.3 μm
- Ls = 18.58 mm
- Wf = 2.892 mm
- Wm = 625.7 μm
- S = 8.053 mm
FEKO’s implementation of the planar Greens function features the ability to model the slot in the ground plane as magnetic triangles, which means that only the slot is meshed and not the ground plane itself, saving significantly on simulation resources.
Reflection coefficient of microstrip-fed slot antenna
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Slot Antenna Pdf
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