SINGLE LAYER SHARED APERTURE DUAL BAND ANTENNA

Embodiment of the present disclosure relates to a shared aperture antenna for continuous transmission of signal to ground station at two different spot frequencies. The antenna provides a broad side radiation pattern for frequency range of S band and squinted radiation pattern for frequency range of...

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Bibliographic Details
Main Authors VERMA, Usha P, JAIN, Sachin, REDDY G, Siva Rami, RATNA, Pummy
Format Patent
LanguageEnglish
French
German
Published 27.05.2020
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Summary:Embodiment of the present disclosure relates to a shared aperture antenna for continuous transmission of signal to ground station at two different spot frequencies. The antenna provides a broad side radiation pattern for frequency range of S band and squinted radiation pattern for frequency range of Ka band. The dual band microstrip antenna is configured on a single layer substrate, having a rectangular slot at small offset from the center on low frequency radiating patch. The positioning of radiating patch and length of high impedance microstrip feed are adjusted to fit into the slot and to get desired squint at high frequency. Two separate coaxial feeds are provided to excite the antenna independently. Third feed fulfil the termination needed by travelling wave array which increases the impedance bandwidth of antenna. A radome is provided to protect the radiating element from environment.
Bibliography:Application Number: EP20170861802