Coplanar waveguide-fed slot antennas on cylindrical substrates

Scardelletti, Maximilian C.; Dib, Nihad; Weller, Thomas M.; Culver, J.; King, Brett J.

doi:10.1016/j.aeue.2004.11.020

Cited by 9 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the interfaces between the subregions where the fields are expanded in terms of the same types of the eigenfunctions and , the simple continuity conditions hold at the interfaces, and they can be transformed into the spectral domain by using the orthogonality of the eigenfunctions. For example, at the interface between the inner air and dielectric substrate , no discontinuity in the direction exists, and the continuity of the component of the electric field for all (4) can be transformed in the spectral domain (5) Similar transformed continuity conditions can be derived for , , and . If a discontinuity in the direction exists on the interface, such as the interface at , the different types of eigenfunctions should be used in each subregions of the interface and the simple transformation of the continuity conditions explained above cannot be obtained.…”

Section: A Esda For Ccpwsmentioning

confidence: 99%

Full-wave analysis for propagation characteristics of cylindrical coplanar waveguides with finite thickness of conductor

Yamamoto

Miyagawa

Nishikawa

et al. 2005

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

A full-wave analysis by the extended spectral-domain approach is successfully applied to solve the cylindrical coplanarwaveguide problem. The analysis incorporates the effects of the edge singularities properly and can afford the efficient and accurate calculation method for the characteristic impedances in addition to the phase constants of cylindrical coplanar waveguides (CCPWs) with zero-and finite-thickness conductor. The numerical results obtained by this method have revealed the effect of conductor thickness on the characteristics of higher order modes, as well as the odd and even dominant modes of CCPWs for the first time.

show abstract

Section: A Esda For Ccpwsmentioning

confidence: 99%

Full-wave analysis for propagation characteristics of cylindrical coplanar waveguides with finite thickness of conductor

Yamamoto

Miyagawa

Nishikawa

et al. 2005

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

show abstract

“…In Reference , two types of deformation on reflection coefficient was studied for the influence of crumpling and bending. A slot loaded cylindrical CPW‐fed antenna is proposed, a cylindrical Teflon substrate is used as a substrate. A flexible reconfigurable antenna is proposed, switches placed on patch for changing current distribution to get reconfigurability.…”

Section: Introductionmentioning

confidence: 99%

A low volume flexible CPW‐fed elliptical‐ring with split‐triangular patch dual‐band antenna

Gopi

Naik

2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

In this article, the intensive investigations are carried out on a low volume compact flexible antenna for wireless applications with a novel structure model. The proposed model has considered as an elliptical‐ring with split‐triangular patch (ERSTP) antenna with the coplanar waveguide feeding to achieve dual‐bands. The ERSTP antenna is designed with polyimide material having the volume (L a × W a × h) 99 mm3. The ERSTP antenna resonates with 2.60 GHz and 3.48 GHz frequencies with a reflection coefficient of −21.92 dB and −32.14 dB and a gain of 2.39 dBi and 1.75, dBi respectively. The impedance bandwidths are 100 MHz and 330 MHz observed at two frequency bands. The proposed ERSTP antenna has operated on mobile‐worldwide interoperability for microwave access (M‐WiMAX) and worldwide interoperability for microwave access (WiMAX) bands respectively. The simulated and measured results of ERSTP antenna are in good agreement.

show abstract

“…The use of cylindrical substrates for microwave design is generally driven by the physical attributes of the system rather than by choice, since the analysis and fabrication are more complicated than for a comparable planar implementation. However the cylindrical geometry can offer certain desirable antenna characteristics that are not provided by planar elements [6].…”

Section: Introductionmentioning

confidence: 99%

Conformal Band-Notch UWB Monopole Antenna on Finite Cylindrical Substrates

Ahmed

2013

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

A microstrip-fed new UWB monopole antenna with a band-notch characteristic mounted on the finite cylindrical surface is presented. The proposed antenna consists of a rectangular metal radiation patch fed by a 50 ohm microstrip line and a rectangular ground plane. To achieve ultra-wideband, three modifications are introduced. The first one is to blend the upper and lower corners of the radiating plates. The second one is to remove a circular section from the radiating metal. The third one is to blend the upper corners of the ground plane. The antenna is designed on a substrate with dielectric constant εr=3 and 1.6 mm height. The proposed antenna is conformed on finite cylindrical substrates of radiuses 4, 5 and 6 cm. The cylindrical structures were simulated through CST microwave studio finite element package. The simulation results, obtained via CST package on the return losses, VSWR and radiation pattern of the antenna are presented. For both planar and conformal antennas, results show that the impedance bandwidth of the designed antenna is from 2-18 GHz with a return loss less than -10 dB (VSWR<2) and a band rejection of 5-6 GHz for wireless LAN (WLAN), that includes the band 5.15-5.825 GHz limited by IEEE 802.11.a and HIPERLAN/2 with return loss greater than -10dB. The proposed simple shaped conformal antenna provides a good radiation pattern and gain between 3.84 and 5.96 dBi over the entire frequency band excluding the rejected band.

show abstract

Coplanar waveguide-fed slot antennas on cylindrical substrates

Cited by 9 publications

References 11 publications

Full-wave analysis for propagation characteristics of cylindrical coplanar waveguides with finite thickness of conductor

Full-wave analysis for propagation characteristics of cylindrical coplanar waveguides with finite thickness of conductor

A low volume flexible CPW‐fed elliptical‐ring with split‐triangular patch dual‐band antenna

Conformal Band-Notch UWB Monopole Antenna on Finite Cylindrical Substrates

Contact Info

Product

Resources

About