High-Efficiency Compact Circularly Polarized Microstrip Antenna With Wide Beamwidth for Airborne Communication

Chen, Xi; Yang, Long; Zhao, Jie; Fu, Guang

doi:10.1109/lawp.2016.2517068

Cited by 85 publications

(31 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…substrate with relative permittivity ε r of 4.4 and loss tangent of 0.02. The crossed slot divides the circular patch into four isolated radiation sectors, which can miniaturize the antenna obviously [6]. The four radiation sectors connect with four triangular feed patches respectively.…”

Section: A Compact Cp Antennamentioning

confidence: 99%

“…On the other hand, in some CP wireless communications, the property of wide beamwidth is required for the CP antennas. In most of these antennas, the beamwidth of the radiation pattern (RP) can be broadened by reducing the antenna diameter or increasing the surface wave, but the beamwidth of AR RP is hardly to increase [6]. In fact, the essential problem of increasing the beamwidth of AR is still how to suppress the cross polarization at low-elevation angle.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact Circularly Polarized Microstrip Antenna With Cross-Polarization Suppression at Low-Elevation Angle

Chen

Yang

et al. 2017

Antennas Wirel. Propag. Lett.

Self Cite

View full text Add to dashboard Cite

The letter presents a method of cross-polarization suppression at low-elevation angle for a compact circularly polarized (CP) microstrip antenna. The compact CP antenna adopts a circular radiation patch with a crossed slot to reduce the dimensions and a four-feeding-point technique is utilized to excite the patch for CP operation. The height and the diameter of the compact CP antenna are 0.064λ and 0.264λ (λ is the free-space wavelength at 1.2GHz). At the outer of the CP antenna, a compact meander-line ring cavity (MLRC) structure is introduced, which can reduce the cross polarization from -14.2dB to -26.1dB in horizontal direction and increase 3dB-AR (axial ratio≤3dB) beamwidth from 128° to 192°. The height and diameter of the cavity are just 0.064λ and 0.448λ. Through the experimental validation, the impedance bandwidth of the proposed antenna for VSWR≤2 is 20.8%, and the CP bandwidth for axial ratio ≤3dB is 8.5%. Because of the MLRC, the cross polarization at low-elevation angle is clearly suppressed and the level at θ=±90° is not more than -23.2dB. The 3dB-AR beamwidth reaches 190°. In the operating band, the peak gain of 5.3dBic is also obtained.

show abstract

Section: A Compact Cp Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Circularly Polarized Microstrip Antenna With Cross-Polarization Suppression at Low-Elevation Angle

Chen

Yang

et al. 2017

Antennas Wirel. Propag. Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Additionally, circular polarization or dual polarization for S‐band antennas or other bands is desired to avoid signal deterioration, which is mostly caused by polarization mismatch between the transmitter and receiver antennas . However, proper shape and orientation of aperture in the stacked topology enable circular polarization which further strengthens its suitability in S‐band applications.…”

Section: Introductionmentioning

confidence: 99%

Circularly polarized stacked patch antenna array with enhanced bandwidth for S‐band applications

Khan

Iftikhar

Fayyaz

et al. 2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

This paper demonstrates the design procedure of a 4 × 8 phased array antenna. Initially, a unit element in multilayer topology with orthogonal slots in the ground plane to couple electromagnetic energy is designed. Then, a stacked patch with truncated edges is placed on the top thick substrate layer to enhance the bandwidth to 600 MHz. This multilayered stacked patch unit element is then used to design a 1 × 4 and 4 × 8 slot coupled stacked patch array. On the bottom side, a novel feedline structure is designed to provide a 90 o phase difference at the antenna feed for the circular polarization. The phase difference is achieved in the feedline structure using a quarter wavelength ( λg/4) difference in the lengths. After the numerical validation, both 1 × 4 and 4 × 8 stacked patch antenna arrays are fabricated to validate the simulations. The final 4 × 8 array achieved the target specification of an active reflection of less than −10 dB over 2.4 to 3.0 GHz, axial ratio of less than 3 dB, and stable radiation pattern over the complete band. In addition, beam scanning characteristics of the proposed stacked patch antenna arrays are also verified. The prototype resulted a peak gain of 19.5 dB at 2.7 GHz, 3‐dB beamwidth around 12 o in the xz‐plane, and scanning range of 90 o. Overall, good agreement between measured and simulated results showed that the proposed designed array capable of providing 600 MHz is an excellent candidate for the radar communication, small commercial drones, and synthetic aperture radar applications.

show abstract

“…Small size circularly polarized (CP) antenna with broadband and high gain characteristics attracts more and more attention. In recent years, various shapes and designs of broadband compact size CP antennas have been developed to overcome the narrow bandwidths and low gain . The broadband stacked circular patch antenna exhibits a 3‐dB ARBW of 31% .…”

Section: Introductionmentioning

confidence: 99%

“…The antenna with characteristic of compact size is proposed in Ref. , a square radiation patch with a cross slot is adopted to reduce the antenna dimension and improve the impedance matching, the IBW of 22.4% and the ARBW of 6.8%, but the peak gain is 5.4 dBic. A new type of planar aperture antenna with broadside radiation , which is compact, high gain, and broadband using a single laminate layer for low cost, nevertheless, the antenna operates in linearly polarized.…”

Section: Introductionmentioning

confidence: 99%

Circularly polarized stacked antenna with broadband and high gain characteristics

Wei

Xing

Peng

2016

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A broadband and high gain circularly polarized stacked antenna with small size was designed. The antenna includes a double‐Y type slot radiator and two slot‐loaded patches with chamfering. Right hand circular polarization performance is achieved by adjusting the length of the two branch of Y type slot. In order to expand the antenna impedance bandwidth and axial ratio (AR) bandwidth, multilayer structure was used. Two patches with chamfering were chosen for radiating element. With the form of orthogonal, rectangular slot cut on the center of the two patches, small size of antenna can be achieved. The measurements show that, the proposed antenna's −10 dB impedance bandwidth is 32.7% (from 4.1 to 5.7 GHz), the 3 dB (AR) bandwidth is 20.7% (from 4.4 to 5.4 GHz) and the gain of the antenna is about 9 dB, which agree well with the simulations. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:292–298, 2017

show abstract

High-Efficiency Compact Circularly Polarized Microstrip Antenna With Wide Beamwidth for Airborne Communication

Cited by 85 publications

References 10 publications

Compact Circularly Polarized Microstrip Antenna With Cross-Polarization Suppression at Low-Elevation Angle

Compact Circularly Polarized Microstrip Antenna With Cross-Polarization Suppression at Low-Elevation Angle

Circularly polarized stacked patch antenna array with enhanced bandwidth for S‐band applications

Circularly polarized stacked antenna with broadband and high gain characteristics

Contact Info

Product

Resources

About