A Compact Zeroth-Order Resonating Wideband Antenna With Dual-Band Characteristics

Sharma, Sameer; Chaudhary, Raghvendra Kumar

doi:10.1109/lawp.2015.2417889

Cited by 68 publications

(25 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An equivalent circuit of proposed MTM based CRLH antenna is composed of series inductance ( L R ), series capacitance ( C L ), shunt inductance ( L L ) and shunt capacitance ( C R ) as shown in Figure . The proposed antenna design procedure is based on a simple topology that incorporates the planar patches, gap capacitances and the meander line inductors that are connected to the CPW ground plane via rectangular radial stub . Since MTM does not exist naturally, it can only formed by an artificial structure.…”

Section: Antenna Design and Methodologymentioning

confidence: 99%

“…The present work uses the Metamaterial (MTM) methodology and standard manufacturing techniques for miniaturizing the antenna structure. In addition, using the proper number of inductive and capacitive elements with new geometries and regulated dimensions, the good performance parameters such as bandwidth, radiation gains, and efficiencies have been achieved . For implementing the antenna structural components the designers have used inter digital capacitance and meander line inductance, which is grounded using metallic via connected to the ground plane through substrate .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A miniaturized UWB via‐less CRLH‐TL loaded CPW FED patch antenna

Rajasekhar

Kumar

2016

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A novel miniaturized ultra‐wide band (UWB) via–less composite right hand left hand transmission line (VL‐CRLH TL) loaded‐coplanar waveguide (CPW) fed monopole antenna has been designed. The CRLH unit cell has been realized with series capacitance and parallel inductance and implemented with gap capacitance and meander line inductance respectively. The meander line inductance is grounded using CPW ground through rectangular stub which eliminates conventional CRLH TL metallic via into ground plane. The proposed antenna is constructed of two unit cells fed by a CPW feed. The offset of feed location attached to patch is more important for impedance matching between them and proposed optimum feed location offset lof = 0.6 mm, which eliminates additional quarter wave transformer to impedance match. The total compact antenna dimension is 25 × 15 × 1.6 mm3 or 0.12λ0 × 0.07λ0 × 0.008λ0, where λ0 is free‐space wavelength at 1.55 GHz. It covers the impedance bandwidth (S11< −10dB) of 1.55 GHz – 14.25 GHz, which corresponds to 160% of fractional bandwidth. The minimum and maximum gain of antenna are 1 dBi at 1.55 GHz and 3.5 dBi at 8.4 GHz respectively, which is suitable for UWB applications. The parametric study of antenna has been done using CST microwave studio and a prototype of the antenna with FR4 substrate is fabricated and tested. Good agreement between simulated and measured results. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2485–2492, 2016

show abstract

Section: Antenna Design and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A miniaturized UWB via‐less CRLH‐TL loaded CPW FED patch antenna

Rajasekhar

Kumar

2016

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…To satisfy the requisition of wider bandwidth, size miniaturization and multiple bands of operation lot of research is going on to develop application‐based antennas. Planar antennas using ZOR concept also attract many researchers for the development of wideband and miniaturized antennas upto desired level is obtained . Due to inherent property of zero propagation constant of metamaterial using CRLH‐TL supports infinite wavelength and ZOR resonators become more fascinating as its resonating frequency becomes independent of the size of the resonator .…”

Section: Introductionmentioning

confidence: 99%

Metamaterial‐inspired miniaturized antenna loaded with IDC and meander line inductor using partial ground plane

Singh

Kumar²,

Dwari

et al. 2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

In this article, a novel omnidirectional compact dual band metamaterial‐inspired antenna with CPW feed has been proposed for application of GSM 1800 (1.71‐1.785 GHz/1.805‐1.879 GHz), GSM 1900 (1.85‐1.91 GHz/1.93‐1.99 GHz), UMTS (1.92‐2.17 GHz), WLAN/Wi Fi (4.9, 5, 5.9 GHz), HiperLAN1 (5.15‐5.3 GHz), and HiperLAN2 (5.47‐5.72 GHz) using a combination of meander line inductor and interdigital capacitor (IDC). The antenna consists of complimentary right/left handed (CRLH) transmission line on both sides of patch to excite zeroth order mode (n = 0). The rectangular slotted stubs act as a virtual ground for the structure using a short circuit condition at the end of the IDC. The zeroth order resonance (ZOR) frequency is mainly controlled by IDC and partially with the meander line inductor. The designed antenna operates from 1.72 to 2.22 GHz and 4.25 to 5.88 GHz with radiating size of 0.56λo × 0.35λo (32 × 20 mm2), where λo is the free‐space wavelength at ZOR frequency of 5.27 GHz. The proposed antenna offers measured impedance bandwidth (|S11| <−10 dB) of 25.3 and 18.7% at 1.95 and 5.28 GHz and covers the targeted frequency bands. The proposed structure offers omnidirectional radiation patterns are congruous throughout the working band.

show abstract

“…The MTM loading improves the impedance matching and causes the proposed antennas to radiate at multiple frequency bands with extended bandwidth. The MTM properties and standard fabrication methods are mostly used for antenna miniaturization where inductive and capacitive loading techniques are applied for the basic monopole antenna to improve its characteristics . The reactive components were realized in literature, such as meander line inductance, interdigital capacitance, gap capacitance .…”

Section: Introductionmentioning

confidence: 99%

Metamaterial‐based compact UWB planar monopole antennas

Rajasekhar

Kumar

2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this article, novel compact UWB antennas based on loading of via less composite right/left‐handed (CRLH) unit cells are presented. Two novel metamaterials (MTM)‐based CRLH‐TL unit cells have been designed. The dispersion characteristics of the proposed unit cells are numerically calculated which follows CRLH properties. We designed a via‐free version of the CRLH unit cell by using virtual ground concept which simplifies the fabrication process and decreases the costs. The additional impedance matching network has been eliminated by using the optimum location of feed offset. The resulting double via less CRLH unit cells loaded antenna's bandwidths are improved by proper realizing the unit cell parameters and merging of ZOR mode to other lower and higher order modes. The proposed antennas have compact dimension 25 × 15 × 1.6 mm3. The two proposed antennas have UWB characteristics such as 109% and 125% fractional bandwidth, respectively. The measured gain and efficiency have been obtained with desired values for UWB applications. Good agreement has been observed between simulated and measured results.

show abstract

A Compact Zeroth-Order Resonating Wideband Antenna With Dual-Band Characteristics

Cited by 68 publications

References 13 publications

A miniaturized UWB via‐less CRLH‐TL loaded CPW FED patch antenna

A miniaturized UWB via‐less CRLH‐TL loaded CPW FED patch antenna

Metamaterial‐inspired miniaturized antenna loaded with IDC and meander line inductor using partial ground plane

Metamaterial‐based compact UWB planar monopole antennas

Contact Info

Product

Resources

About