Cylindrical Conformal Antenna Arrays Theory for Military Aircraft Antenna

Chauhan, Brajlata; Bhatia, Muskan; Chakraborty, Akashdeep; Sharma, PS; Sharma, Anuj K.

doi:10.1109/gucon48875.2020.9231232

Cited by 6 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the benefit of compatibility with the surface of carriers, the conformal antenna can ensure the electromagnetic characteristics of the antenna while effectively meeting the good aerodynamic layout of the carriers [ 1 ]. Achieving electromagnetic (EM) radiation characteristics without destroying the original aerodynamic layout of the carrier, the conformal antenna has been used extensively in airplanes, tanks, and various complicated and composite platforms [ 2 ]. Due to the increased complexity of the carriers and the diversity of load forms, the requirements for the conformal antenna are different.…”

Section: Introductionmentioning

confidence: 99%

Broadband Flexible Microstrip Antenna Array with Conformal Load-Bearing Structure

et al. 2023

View full text Add to dashboard Cite

To enhance the load-bearing mechanical properties and broadband electromagnetic characteristics of the conformal antenna, a broadband microstrip antenna array with a conformal load-bearing structure is proposed in this paper, which consists of three flexible substrate layers and two honeycomb core layers stacked on each other. By combining the antenna and honeycomb core layer in a structural perspective, the antenna array is implemented in the composition function of surface conformability and load-bearing. Additionally, the sidelobe level of the antenna is suppressed based on the reflection surface loaded. Meanwhile, an equivalent model of a honeycomb core layer has been established and applied in the design of a conformal antenna with a load-bearing structure. The presented model increases the accuracy of simulated results and reduces the memory consumption and time of the simulation. The overall size of the proposed antenna array is 32.84 × 36.65 × 4.9 mm (1.36 λ0 × 1.52 λ0 × 0.2 λ0, λ0 is the wavelength at 12.5 GHz). The proposed antenna element and array have been fabricated and measured in the flat state and under other various bending states. Experiment results show the operating relative bandwidth of the antenna array is 20.68% (11.67–13.76 GHz and 14.33–14,83 GHz) in the flat state. Under different bending conditions, the proposed antenna array covers 24.16% (11.08–14.1 GHz), 23.82% (10.63–13.5 GHz), and 23.12% with 30°, 60°, and 90° in the xoz plane (11.55–14.33 GHz). In terms of mechanical load bearing, the structure has better performance than the traditional single-layer honeycomb core load-bearing structure antenna.

show abstract

Section: Introductionmentioning

confidence: 99%

Broadband Flexible Microstrip Antenna Array with Conformal Load-Bearing Structure

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Flexible and conformal electronics are the basis of various emerging devices and technologies, including wearable electronics [1][2][3][4][5], electronic skins [6][7][8][9][10], bionic devices [11][12][13], soft robots [14][15][16][17], and the Internet of Things (IoT) [18][19][20]. For example, conformal antennas are receiving considerable interest based on extensive healthcare [21][22][23][24][25][26][27], IoT [28][29][30], and aerospace applications [31][32][33]. Various printing techniques have been utilized for the fabrication of flexible antennas, including screen-printing [34,35], inkjet printing [36][37][38], and liquid metalfilled microfluidics [39,40].…”

Section: Introductionmentioning

confidence: 99%

Conformal 3D printing of non-planar antennas on wrinkled and folded kapton films using point cloud data

Kucukdeger

Tong

Singh

et al. 2021

Flex. Print. Electron.

View full text Add to dashboard Cite

We report a reverse engineering-driven method for conformal microextrusion three-dimensional (3D) printing of functional materials on complex 3D structures and thin films of near-arbitrary topography. A non-planar tool path programming algorithm for conformal microextrusion 3D printing based on point cloud data representations of object geometry is presented. We show that the optimal nozzle-substrate standoff distance for quality 3D printing depends on the substrate's local geometric features (i.e. slope and curvature) and the tool trajectory. The impact and utility of the novel conformal microextrusion 3D printing process were demonstrated by fabrication of 3D spiral and Hilbert-curve loop antennas on various non-planar substrates, including wrinkled and folded Kapton films and origami. 3D-printed conformal antennas exhibited resonant frequencies ranging from 1.5 to 2.7 GHz with S 11 less than 10 db. This work provides a new method for conformal 3D printing on one-of-a-kind objects and non-planar films.

show abstract

Radiation pattern synthesis in conformal antenna arrays using modified convex optimization technique

Khan

Khattak

Asif

et al. 2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

In this paper, a modified convex optimization technique is used for radiation pattern correction in a cylindrical-shaped conformal microstrip array antenna.The technique uses numerical simulations to optimize the amplitude and phase excitations, with the goal to decrease the Euclidean distance between the desired field pattern and the obtained (simulated/measured) field pattern while maintaining the main beam direction, null's location, and side lobe levels under control. Two prototypes of 1 Â 4 and 2 Â 4 conformal microstrip antenna array deformed from linear/planar structure to the prescribed cylindrical shape, with different radii of curvature, are studied to demonstrate the performance of the proposed technique. The proposed convex optimization model when applied to conformal antenna array possesses fast computing speed and high convergence accuracy for radiation pattern synthesis, which can be a valuable tool for engineering applications.

show abstract

Cylindrical Conformal Antenna Arrays Theory for Military Aircraft Antenna

Cited by 6 publications

References 7 publications

Broadband Flexible Microstrip Antenna Array with Conformal Load-Bearing Structure

Broadband Flexible Microstrip Antenna Array with Conformal Load-Bearing Structure

Conformal 3D printing of non-planar antennas on wrinkled and folded kapton films using point cloud data

Radiation pattern synthesis in conformal antenna arrays using modified convex optimization technique

Contact Info

Product

Resources

About