Dual broadband high gain SIW slot array antenna

Priya, Shruti; Dwari, Santanu; Kumar, Kundan

doi:10.1109/icmap.2018.8354616

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Some techniques about spliting the operative bandwidth and making each slot on the array to radiate at a sub-band have been researched in order to enhance the operational band. Subarrays of four [87,88] and two [89] elements have been researched, with moderate bandwidths around 10%. However, the mutual interference from different slots at the same frequency is not treated, and it can distort the radiation pattern and decrease the beam bandwidth.…”

Section: Beamforming Networkmentioning

confidence: 99%

“…Resonant slot arrays are not known by their wide bandwidth since they use to be aimed at narrow band services. Some papers had previously shown a method about splitting the whole frequency band and assigning each sub-channel to a slot within the resonant cavity [87,89]. However, they have not treated the beam squint of the slot array along the frequency band, they only did mention the impedance-bandwidth and did not talk about the beam-bandwidth.…”

Section: A Novel Two-propagation-modes Dual-polarizedmentioning

confidence: 99%

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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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Section: Beamforming Networkmentioning

confidence: 99%

Section: A Novel Two-propagation-modes Dual-polarizedmentioning

confidence: 99%