Light Weight and Conformal 2-Bit, 1$\,\times\,$4 Phased-Array Antenna With CNT-TFT-Based Phase Shifter on a Flexible Substrate

Pham, D.; Subbaraman, Harish; Chen, M. Y.; Xu, Xiaochuan; Chen, R. T.

doi:10.1109/tap.2011.2165490

Cited by 27 publications

(13 citation statements)

References 17 publications

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“…Flexible printed circuits [21], or stamped antennas, have also been reported, using silver nano-inks for printing the feed lines and power dividers. The same method is used in [22,23] with ink-jet printed 2-bit, 1 × 4 PAA system on a flexible Kapton polyimide substrate utilizing CNT-TFTs as switching elements in the phase-shifting network. Beam steering is achieved by controlling the ON/OFF states of the transistors.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

Haghzadeh¹,

Jaradat²,

Armiento³

et al. 2016

PIER C

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Abstract-A fully printable and conformal antenna array on a flexible substrate with a new LeftHanded Transmission Line (LHTL) phase shifter based on a tunable Barium Strontium Titanate (BST)/polymer composite is proposed and computationally studied for radiation pattern correction and beam steering applications. First, the subject 1 × 4 rectangular patch antenna array is configured as a curved conformal antenna, with both convex and concave bending profiles, and the effects of bending on the performance are analyzed. The maximum gain of the simulated array is reduced from the flat case level by 34.4% and 34.5% for convex and concave bending, respectively. A phase compensation technique utilizing the LHTL phase shifters with a coplanar design is used to improve the degraded radiation patterns of the conformal antennas. Simulations indicate that the gain of the bent antenna array can be improved by 63.8% and 68% for convex and concave bending, respectively. For the beam steering application, the proposed phase shifters with a microstrip design are used to steer the radiation beam of the antenna array, in planar configuration, to both negative and positive scan angles, thus realizing a phased array antenna.

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Section: Introductionmentioning

confidence: 99%

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

Haghzadeh¹,

Jaradat²,

Armiento³

et al. 2016

PIER C

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“…Compared to our previous demonstration 5,6 , in this work, we incorporated high-performance FETs based on fully printed CNT/ion-gel/Ag structure and explore a simple and scalable architecture for electrical interconnect routing. Figure 1(a) shows an in-house developed all-printed PAA operating in the X-band.…”

Section: Introductionmentioning

confidence: 99%

X-band printed phased array antennas using high-performance CNT/ion gel/Ag transistors

et al. 2016

Self Cite

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This paper reports a fully printed phased array antenna developed on a 125 micron thick flexible Kapton substrate. Switching for the phase delay lines is accomplished using printed carbon nanotube transistors with ion gel dielectric layers. Design of each element of the phased array antenna is reported, including a low loss constant impedance power divider, a phase shifter network, and patch antenna design. Steering of an X-band PAA operating at 10GHz from 0 degrees to 22.15 degrees is experimentally demonstrated. In order to completely package the array with electrical interconnects, a single substrate interconnect scheme is also investigated.

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“…Furthermore, conformal arrays can afford larger beam coverage range besides planar arrays. Hence, the designs of conformal array antennas have been an attractive research field, and many significant investigations have been reported, such as the conformal waveguide slot arrays [1] and the conformal microstrip patch arrays [1][2][3][4][5][6][7][8][9][10][11]. As compared to conformal waveguide slot arrays, conformal microstrip patch arrays have the advantage of lighter weight, smaller size, and better integration with aircrafts.…”

Section: Introductionmentioning

confidence: 99%

A Broadband Conformal Phased Array Antenna on Spherical Surface

Sun¹,

Shu²,

Yan³

2014

International Journal of Antennas and Propagation

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A Ku-band wideband conformal array antenna with13×19elements is presented in the paper. The array has a spherical structure, and its element is a proximity-coupled stacked patches antenna with a cavity-backed ground plane. The stacked patches and the cavity produce multiple coupled resonances, which enhance the bandwidth of the element extremely. A simulated model with the reasonable dimensions is framed with the coupling analyses, and the effective simulated results and good computing efficiency are obtained simultaneously. The measured results of the center embedded element in the whole array show a bandwidth exceeding 40%VSWR<2, which is close to the simulated matching performance.

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Light Weight and Conformal 2-Bit, 1$\,\times\,$4 Phased-Array Antenna With CNT-TFT-Based Phase Shifter on a Flexible Substrate

Cited by 27 publications

References 17 publications

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

X-band printed phased array antennas using high-performance CNT/ion gel/Ag transistors

A Broadband Conformal Phased Array Antenna on Spherical Surface

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