Compact MUSA: Modified U-slot patch antennas with reduced cross-polarization

Costanzo, Sandra; Costanzo, Antonio

doi:10.1109/map.2015.2437284

Cited by 8 publications

(9 citation statements)

References 30 publications

(38 reference statements)

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“…The patch radius for this side length is calculated by using Equation (12). For this radius, actual P-MSA side length 'a' is calculated by using Equation (5).…”

Section: Design Procedures For P-msa With a Pair Of Slotsmentioning

confidence: 99%

“…Initially, the MSA suffered from the disadvantage of narrow impedance bandwidth (BW). However, over the last four decades, many techniques have been reported for the BW enhancement, and among them slot cut method is widely used [4][5][6][7][8][9][10][11][12][13][14][15][16]. An increase in the BW of slot cut MSA is realized by employing multiple slots [17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Wideband Pentagonal Shape Microstrip Antenna Using a Pair of Rectangular Slots

Deshmukh¹,

Chavali²

2021

PIER C

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Designs of a polygon shape microstrip antenna for increasing number of side lengths are studied. A detailed analysis is presented for the variations observed in the first and second order mode resonance frequencies in a polygon shape patch, from triangle to square to pentagon, ending up in a circle. Among all the polygon shapes, close spacing between the first two frequencies is obtained in the pentagon shape patch. A design of a pentagon shape microstrip antenna with a pair of slots is proposed. It gives impedance bandwidth of more than 700 MHz (> 55%), which is maximum amongst all the polygon shapes employing a pair of rectangular slots. The proposed design offers a peak broadside gain of 9 dBi over the bandwidth. A resonant length formulation and subsequent design methodology for the pentagon shape patch and its slot loaded variation are presented. This helps in the redesigning of a similar configuration in a given frequency range, using proximity and coaxial feeds.

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“…The patch radius for this side length is calculated by using Equation (12). For this radius, actual P-MSA side length 'a' is calculated by using Equation (5).…”

Section: Design Procedures For P-msa With a Pair Of Slotsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wideband Pentagonal Shape Microstrip Antenna Using a Pair of Rectangular Slots

Deshmukh¹,

Chavali²

2021

PIER C

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“…However, the size of a microwave antenna with a narrow beam is considerable at Ku-, X- and C-bands. Though recent advancement in antenna technologies allow to make them small enough to be installed on aircraft as a separate piece of equipment [ 23 ], installation of any additional equipment, especially on small aircraft, has its own drawbacks such as the reduction of aerodynamic characteristics, need for additional power supply etc. Accordingly, the most straightforward solution would be to also use the navigation equipment already available onboard for sea surface monitoring, in addition to its normal functionality.…”

Section: Introductionmentioning

confidence: 99%

Doppler Navigation System with a Non-Stabilized Antenna as a Sea-Surface Wind Sensor

Nekrasov

Khachaturian

Veremyev

et al. 2017

Sensors

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We propose a concept of the utilization of an aircraft Doppler Navigation System (DNS) as a sea-surface wind sensor complementary to its normal functionality. The DNS with an antenna, which is non-stabilized physically to the local horizontal with x-configured beams, is considered. We consider the wind measurements by the DNS configured in the multi-beam scatterometer mode for a rectilinear flight scenario. The system feasibility and the efficiency of the proposed wind algorithm retrieval are supported by computer simulations. Finally, the associated limitations of the proposed approach are considered.

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“…A modified U‐shaped slot is presented in Ref. which minimize the unwanted currents which gives rise to cross‐polar radiation. In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The XP level of the microstrip antenna is comparatively high in the H‐plane due to the unwanted higher order radiating modes which affects the far‐field performance of the antenna . The XP level can be suppressed by different techniques like modified feed arrangement, the ground plane modification and the different topologies, but complexity increases with the structural modifications. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Cross-polarization reduction of microstrip antenna using microwave absorbers

Singh

Jha

Singh

et al. 2017

Int J. RF Microw. Comput. Aided Eng.

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In this article, a metamaterial inspired microwave absorber is used to reduce the cross‐polarization (XP) level of the radiated wave in microstrip antenna (MSA). A microwave absorber unit‐cell has been analyzed and implemented to reduce the cross polarization (XP) level in a single element and a 2 × 2 microstrip patch array antennas. The antennas have been designed on a FR‐4 substrate of thickness 0.8 mm at 10.1 GHz center frequency. The 2 × 2 patch array antenna with and without the absorbers have been experimentally verified for the S11 parameter, the radiation pattern, and the XP suppression in H‐plane and a good comparison has been found.

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Compact MUSA: Modified U-slot patch antennas with reduced cross-polarization

Cited by 8 publications

References 30 publications

Wideband Pentagonal Shape Microstrip Antenna Using a Pair of Rectangular Slots

Wideband Pentagonal Shape Microstrip Antenna Using a Pair of Rectangular Slots

Doppler Navigation System with a Non-Stabilized Antenna as a Sea-Surface Wind Sensor

Cross-polarization reduction of microstrip antenna using microwave absorbers

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