Reconfigurable Dual-Fed Horn With Pattern Switchability Realized by SIW Technology
01 May 2020-IEEE Transactions on Antennas and Propagation (Institute of Electrical and Electronics Engineers (IEEE))-Vol. 68, Iss: 5, pp 4072-4076
TL;DR: In this paper, a multihorn antenna using the substrate integrated waveguide (SIW) technology is discussed in this communication, in which both E- and H-plane radiations can be realized by individually exciting the two sectoral horns, while terminating the other port to a matched load.
Abstract: A novel multihorn antenna using the substrate integrated waveguide (SIW) technology is discussed in this communication. Conventional SIW-inspired horns, being the extensions of planar H-plane horn antennas, portray a fan-shaped beam, with a narrow H-plane and a wide E-plane radiation characteristics. The present design employs this feature to produce a crossed horn, in which both E- and H-plane radiations can be realized by individually exciting the two sectoral horns, while terminating the other port to a matched load. When both the ports are excited, a spot beam is realized, representing a pattern similar to that of a pyramidal horn. Such an antenna should find its potential applications in systems requiring radiation switchability/pattern diversity from a single embodiment.
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Cites background from "Reconfigurable Dual-Fed Horn With P..."
...Combining Equations (3), (4), and (8), the resonant frequency of the rectangular cavity can be calculated....
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TL;DR: In this paper , a compact substrate integrated folded waveguide (SIFW) H-plane horn antenna array with simultaneous omnidirectional and directional radiation characteristics for potential utilization to high-speed wireless communication is presented.
Abstract: A compact substrate integrated folded waveguide (SIFW) H-plane horn antenna array with simultaneous omnidirectional and directional radiation characteristics for potential utilization to high-speed wireless communication is presented in this article. The realization of the proposed design has been accomplished by placing the apertures of nine exponentially tapered SIFW H-plane horns towards the circumference of a cylindrical substrate with an angular separation of 40◦ between the horns. Every horn flaring includes a column of three slots. Centre probe feed technique has been used to excite the antenna. The radiation of the field by the horn apertures and through the slots of the horns flaring, respectively, results in an omnidirectional and a directional radiation pattern at 13.8GHz and 18.42GHz, with the gain of 7 dBi and 10.92 dBi. The proposed antenna has performed well and is in good agreement between simulation and measurement. The dimension of the antenna is 37.3mm(diameter)× 1mm(height) (1.71λ0 × 0.046λ0 at 13.8GHz and 2.29λ0 × 0.061λ0 at 18.42GHz). SIFW technology makes low profile antenna. The proposed design can be a promising option to be used as a low-profile antenna for high-speed wireless communication.
References
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30 Jun 1994TL;DR: In this article, the authors describe the theory, design, performance and application of microwave horns and feeds for reflector antennas, and describe design principles and methods of analysis, as well as the first general treatment of feeds for RSS antennas.
Abstract: This book is devoted to describing the theory, design, performance and application of microwave horns and feeds for reflector. The first general treatment of feeds for reflector antennas, it describes design principles and methods of analysis.
544 citations
Additional excerpts
...loading modifies the aperture field [15], which can be visualized from the simulated portrays of Fig....
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TL;DR: In this article, a dielectric loaded substrate integrated waveguide (SIW) H-plane sectoral horn antenna has been proposed and two antennas with rectangular and elliptical shaped loaded dielectrics were designed and fabricated.
Abstract: A dielectric loaded substrate integrated waveguide (SIW) H-plane sectoral horn antenna has been proposed in this paper. The horn and the loaded dielectric are integrated by using the same single substrate resulting in easy fabrication and low cost. Two antennas with rectangular and elliptical shaped loaded dielectrics were designed and fabricated. These antennas have high gain and narrow beamwidths both in the E-plane and in the H-plane. The results from the simulation and those from the measurement are in good agreement. To demonstrate applications of the array, the small aperture elliptical dielectric loaded antenna has been used to form an array to obtain higher gain and to form a one-dimensional monopulse antenna array.
331 citations
"Reconfigurable Dual-Fed Horn With P..." refers background in this paper
...Subsequently, there had been several developments in SIW-based H-plane horns to mitigate the issues, such as reduction in back and sidelobes, escalating gain, and increasing the operating bandwidth [2]–[12]....
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TL;DR: In this article, a transition printed on the same SIW substrate is proposed to improve the matching performance of SIW horn antennas in the Ku-band with a substrate thinner than λ 0/10.
Abstract: The substrate integrated waveguide (SIW) technology allows to construct several types of commonly used antennas in a planar way. However, some practical constraints limit their performances when frequencies below 20 GHz are considered. In the case of SIW horn antennas, the available substrates are much thinner than the wavelength yielding to poor matching and undesired back radiation. In this paper, an innovative structure to overcome these limitations is presented. It consists of a transition printed on the same SIW substrate, which improves both the radiation and the matching performances of conventional SIW horns. The horn shape is also further optimized by reducing its dimensions required for a given directivity. This is obtained by modifying the horn profile in order to effectively combine different TE modes. Guidelines are provided to design this type of thin and compact SIW horn antenna. They were applied to manufacture a prototype in the Ku-band with a substrate thinner than λ0/10. Measurement results validate the proposed concepts showing excellent performances.
190 citations
TL;DR: In this article, a substrate integrated waveguide (SIW) horn antenna loaded with air-via perforated dielectric slab for bandwidth enhancement is proposed, which can enhance the impedance bandwidth of the antenna in much degree.
Abstract: A substrate integrated waveguide (SIW) horn antenna loaded with air-via perforated dielectric slab for bandwidth enhancement is proposed in this letter. The narrow impedance bandwidth of the planar horn antenna is mainly resulting from the discontinuity between the substrate and air. By simply drilling air-vias with different diameters in the substrate extended from the horn aperture, a smooth transition from substrate to air can be achieved, which can enhance the impedance bandwidth of the antenna in much degree. Measured results show that the enhanced impedance bandwidth of 40% from 16 to 24 GHz is obtained with the return loss |S11| below -10 dB. In addition, stable radiation patterns are observed over the entire operating band.
113 citations
TL;DR: In this article, a H-plane horn antenna based on a ridged substrate integrated waveguide (SIW) with a large conducting ground is proposed for wide-band and low-profile communication.
Abstract: This communication presents a wide-band and low-profile H-plane horn antenna based on ridged substrate integrated waveguide (SIW) with a large conducting ground. The horn antenna is implemented in a single substrate with a thickness of 0.13 λ0 at the center frequency. Despite its low profile, the new H-plane horn antenna achieves a very wide bandwidth by employing an arc-shaped copper taper printed on the extended dielectric slab and a three-step ridged SIW transition. The ridged SIW is critical for widening the operation bandwidth and lowering the characteristic impedance so that an excellent impedance matching from the coaxial probe to the narrow SIW can be obtained over a wide frequency range. Measured VSWR of the fabricated horn antenna is below 2.5 from 6.6 GHz to 18 GHz. The antenna also exhibits stable radiation beam over the same frequency range. It is observed that measured results agree well with simulated ones.
103 citations