Metallized foams for fractal-shaped microstrip antennas

Anguera, Jaume; Daniel, J.P.; Borja, C.; Mumbru, J.; Puente, C.; Leduc, T.; Laeveren, N.; Roy, Peter Van

doi:10.1109/map.2008.4772718

Cited by 56 publications

(31 citation statements)

References 27 publications

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“…CNTs are particularly attractive in nanoscale electronic applications because they show excellent mechanical, electrical, and thermal properties [1,2]. The use of MWCNT-based antennas in low-power communication devices, such as synthetic aperture radar (SAR), in harsh chemical and gas environments is of particular interest because antennas using conventional copper patches can become oxidized in such environments [5,[11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Multiwalled carbon nanotube-based patch antenna for bandwidth enhancement

Devi

Angadi

Mahesh

2017

Materials Science and Engineering: B

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a b s t r a c tA novel carbon nanotube (CNT)-based rectangular microstrip antenna for wide impedance bandwidth applications has been designed and developed. The copper patch commonly placed on the substrate in a conventional rectangular microstrip antenna is replaced with a CNT patch prepared using spin coating. The MWCNT patch antenna was fabricated by spin coating method and it exhibits an increased impedance bandwidth of 20%. The enhancement of the impedance bandwidth does not affect the broadside radiation characteristics. The carbon nanotubes are highly conductive nanomaterial. Due to this unique property, each nanotube present on the surface resonates electromagnetic waves individually and influences the enhancement in the bandwidth. The simple design and fabrication of the proposed antenna can be employed for synthetic aperture radar applications.

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Section: Introductionmentioning

confidence: 99%

Multiwalled carbon nanotube-based patch antenna for bandwidth enhancement

Devi

Angadi

Mahesh

2017

Materials Science and Engineering: B

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“…Nevertheless, the feeding networks for these antennas are required, decreasing antenna efficiency and increasing structures complexity. Thus, having high-directivity antennas with a single element is interesting since it avoids the use of a feeding network [6][7][8][9][10][11]. In particular, the antenna using TE 330 mode [6] can provide a measured peak gain of 13.6 dBi and peak antenna efficiency of 96%.…”

Section: Introductionmentioning

confidence: 99%

A Novel High-Gain Cavity Slot Antenna Based on Polarization Twist Reflector for High Power Microwave Applications

Zhang¹,

Zhang²,

Zhang³

2017

PIER C

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Abstract-A novel high-gain and high-power cavity slot antenna is presented in this paper. The antenna consists of a slotted cavity cover, a driven antenna and a polarization twist reflector. The driven antenna is a balanced-fed dipole. And a 2 × 4 slots array is etched on the top surface of the cavity cover. To excite the cavity slots with uniform amplitude and phase, the polarization twist reflector is used here. Compared with the antenna without the twister, the gain is improved by almost 4.0 dB across the operating band. In addition, the field distributions of the proposed antenna are analyzed through simulation, which proves a high power-handling capacity of 3.94 MW. To verify the design, a prototype operating at 5.8 GHz band has been fabricated and measured. The measured maximum gain and radiation efficiency are 13.6 dBi and 95%, respectively.

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“…Because of cost, weight, fabrication procedure it limited the use of copper or metals for patch or ground plane. Several composite materials as replacement for metals were studied in many recent studies [6][7][8]. Due to electrical properties and favorable mechanical Carbon Nanotube Composites have been used for electromagnetic applications [9][10][11][12].In this study, using the dyadic Green's function formulation the electric and magnetic fields in the upper half-space due to the current distribution on the Star Patch are obtained [13].…”

Section: Introductionmentioning

confidence: 99%