Compact Substrate Integrated Waveguide Quasi-Endfire Antenna for CubeSat Integration

Alrushud, Khalid; Buendía, Victoria Gómez-Guillamón; Podilchak, Symon K.

doi:10.1109/lawp.2021.3111492

Cited by 6 publications

(3 citation statements)

References 36 publications

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“…Recently people have started using SIW based antennas for CubeSat applications. A quasi-end-fire SIW antenna with a gain of 13.3 dBi at K band is suggested in [18]. It radiates linearly polarized waves in TM 0 mode from the edge of a grounded dielectric slab.…”

Section: Introductionmentioning

confidence: 99%

Compact Dual Slot SIW Cavity Backed Antenna for CubeSat/Nanosatellite Applications

Abegaonkar

Basu

2023

IEEE Access

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In this article, a small aperture coupled SIW cavity-backed dual slot antenna is presented. It is demonstrated that, for a rectangular SIW cavity with dual slot, when the feed point is chosen properly, the structure can resonate at much lower frequency than that of the conventional SIW cavity mode frequency. An equivalent cavity model is formed; a formula for the calculating the operating frequency and a general design guideline are provided for this structure. The designed prototype antenna provides a gain of 8.41 dBi at 15 GHz. For high-gain applications, a 2 × 4 array of such element is demonstrated. An experimental validation of the array results in a gain of 16.01 dBi. The structure is compact, offers a broadside radiation pattern, easy to integrate with metallic surface, and has inherent property of reducing mutual coupling. As a result, it can find application in CubeSat/SmallSats where space is among the major constraints and components are very closely packed. It can be used in CubeSat missions for earth and planetary observations, intersatellite communications, and in MIMO systems for SmallSat swarms.INDEX TERMS Compact antennas, CubeSats, high gain, substrate integrated waveguide (SIW), slot antenna.

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Section: Introductionmentioning

confidence: 99%

Compact Dual Slot SIW Cavity Backed Antenna for CubeSat/Nanosatellite Applications

Abegaonkar

Basu

2023

IEEE Access

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“…Another S-band patch antenna with a gain of 7.3 dBic was reported for earth observation in 10 . In 11 , a quasi-end-fire SIW antenna with a gain of 13.3 dBi at 18.6 GHz is reported. It radiates in TM 0 mode from the edge of a grounded dielectric slab.…”

Section: Introductionmentioning

confidence: 99%

A broadband circularly polarized Fabry Perot antenna with spatially separated superstrate area excitation for CubeSat applications

Abegaonkar

Basu

2023

Sci Rep

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This article describes the development of a high-gain, broadband, circularly polarized Fabry–Perot cavity (FPC) antenna for high-data-rate communication in CubeSat/SmallSat applications. In this work, the concept of spatially separated superstrate area excitation is developed for the first time in FPC antennas. This concept is then validated and applied to increase the gain and the axial ratio bandwidth of a conventional narrowband circularly polarized source patch antenna. The antenna’s design leverages independent control of polarization at different frequencies, resulting in a large overall bandwidth. The fabricated prototype antenna provides right hand circular polarization with a peak measured gain of 15.73 dBic over a common bandwidth of 1.03 GHz ranging from 7.99 GHz to 9.02 GHz. The gain variation over the bandwidth is less than 1.3 dBic. The antenna measures 80 mm × 80 mm × 21.14 mm and is simple, lightweight, easily integrable with CubeSat body, and useful for X-Band data downlink. When integrated with the metallic body of a 1U CubeSat, the simulated gain of the antenna increases to 17.23 dBic, with a peak measured gain of 16.83 dBic. A deployment method is proposed for this antenna that results in a total stowed volume of only 2.13λo × 2.13λo × 0.084λo (0.38 $${\lambda }_{o}^{3}$$ λ o 3 ).

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“…By placing rows of vias, SIW antennas can be also easily implemented in the chassis of a cube-sat. I.e: By adding a huge spacing between vias on a T-Junction [111], it acts as a Leaky Wave Antenna and the authors achieve a quasi-endfire antenna at 18GHz with a gain of 14dBi and efficiency above 90%. The total size is 5λ × 4.8λ for a cube-sat whose weight is below 1kg.…”

Section: Chapter 1 Introductionmentioning

confidence: 99%

Enhanced substrate integrated waveguide slot arrays for radiofrequency worldwide coverage systems

Sebastián¹

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This paper presents a novel slotted array for dual-band and circular-polarized applications. Two different propagation modes within a Substrate Integrated Waveguide (SIW), 𝑇 𝐸 10 and 𝑇 𝐸 20 , feed at the same time two pairs of slots, aimed at different frequency bands. The pairs are properly placed to be illuminated by an only propagation mode, whereas the magnetic field of the other propagation mode presents a null. Unlike many dual-band slot arrays, this novel antenna holds the same beam tilt for both frequency bands by a new method, which is only feasible through the use of two propagation modes. A dual-mode transition, based on a double microstrip input, allows to excite both propagation modes within the SIW, and it can be fed by a novel single layer dual-band phase shifter with a different shift at each frequency. A square patch is placed over each pair of slots to increase the coupled energy per element, resulting in a low polarization loss and high performance compact antenna at 3.5 GHz and 6 GHz for dual-band TX/RX systems at C-Band.

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Compact Substrate Integrated Waveguide Quasi-Endfire Antenna for CubeSat Integration

Cited by 6 publications

References 36 publications

Compact Dual Slot SIW Cavity Backed Antenna for CubeSat/Nanosatellite Applications

Compact Dual Slot SIW Cavity Backed Antenna for CubeSat/Nanosatellite Applications

A broadband circularly polarized Fabry Perot antenna with spatially separated superstrate area excitation for CubeSat applications

Enhanced substrate integrated waveguide slot arrays for radiofrequency worldwide coverage systems

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