Antenna Magus version 4.5 released
Version 4.5 of Antenna Magus, a software tool that helps engineers design and model antennas, is now available. In the new release, an additional seven new antennas have been added to the database, increasing the number of antenna templates to 225. Read about the new antennas, including the linear array of rectangular patches, dual-ridged pyramidal horn antenna, and more.
The new antennas are:
- Linear resonant narrow wall slotted guide array,
- Linear array of rectangular patches (including a corporate feed network),
- Short dual-waveguide-fed pyramidal horn antenna,
- Dual-ridged pyramidal horn antenna with sidewalls removed,
- Dual-band self-phased quadrifilar helix antenna,
- 4-arm Sinuous antenna with an absorber-loaded cavity-backing,
- 2-arm log-periodic antenna with an absorber-loaded cavity-backing.
Linear resonant narrow wall slotted guide array
The resonant slotted waveguide array is terminated by a short circuit, so as to produce a standing wave within the guide. The slots are placed so that (at the operating frequency) identical field maxima of the standing wave occur at the centres of each slot. The phase of the radiation of each slot is identical at the operating frequency, resulting in a broadside beam. In terms of both impedance and pattern quality, the performance is limited to a narrow band.
The narrow-wall slot array is a popular microwave frequency antenna, which is especially useful for RADAR applications, where mechanical robustness, low-loss and the ability to withstand high power are advantageous. A single instance of the linear array produces a fan beam, while a pencil beam may be created by stacking a number of them to realise a planar array configuration.
Read and download the full article below.
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