Composite right/left‐handed based compact and high gain leaky‐wave antenna using complementary spiral resonator on HMSIW for Ku band applications

Sarkar, Anirban; Adhikary, Moitreya; Sharma, Abhishek; Biswas, Animesh; Akhtar, M. Jaleel; Hu, Zhirun

doi:10.1049/iet-map.2017.0478

Cited by 43 publications

(28 citation statements)

References 31 publications

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“…The reflection coefficient can be obtained from the calculated intrinsic impedance using equation (15). The transmission coefficient can also be obtained in terms of the reflection coefficient using equation (18):…”

Section: Parameter Retrieval and Simulation Setupmentioning

confidence: 99%

“…There are various metamaterial designs available in the literature which result in metamaterial behaviours like diamondshaped [10], cross-shaped [11], concentric ring resonators [12], EM resonators [13], n-point star resonators [14], bed nails [15], fishnet [16], modified S-shaped SRR [17], complementary quad spiral resonator [18] and many more for different types of metamaterial applications. However, most of the reported metamaterials are found either having the SNG or narrow band DNG responses.…”

Section: Introductionmentioning

confidence: 99%

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A compact CRLH metamaterial with wide band negative index characteristics

2019

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Metamaterials are the artificial materials that may have a negative refractive index and results in extraordinary properties which are not found in nature. This research focusses on designing a compact-sized artificial material for negative characteristics of permittivity, permeability and refractive index over the wide range of frequencies. The metamaterial design is evaluated for single negative, double negative and double positive behaviours over a broad range of frequencies to investigate the gap and gapless transitions from backward to forward wave propagation. The dispersion diagram of the material is also investigated for left or right hand behaviour of the material. The equivalent circuit diagrams along with circuit simulations of the parameters are also presented for detailed analysis and understanding. The designed metamaterial behaves like a double negative material for low frequencies and double positive material for high frequencies. The approach is verified using CST microwave studio simulation and the results obtained are validated using the rectangular waveguide measurement method.

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Section: Parameter Retrieval and Simulation Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A compact CRLH metamaterial with wide band negative index characteristics

2019

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“…In References , transverse slot and H‐shaped slots are etched from the top of the SIW‐based structure in order to obtain single band forward beam scanning operation with the linear or circular polarization (CP). Very recently, in Reference , a combination of spiral slots has been etched from half mode substrate‐integrated waveguide (HMSIW)‐based structure to produce continuous beam scanning linearly polarized (LP) LWA. In Reference , a conventional composite right/left‐handed (CRLH) SIW‐based LWA is proposed for polarization‐flexible operation where a separate feeding network is used to produce the required phase shift between the orthogonally polarized field components generated from its unit cell.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band dual‐polarized leaky‐wave structure with forward and backward beam scanning for circular polarization‐flexible antenna application

Rudramuni

Majumder

Kandasamy

2020

Micro & Optical Tech Letters

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In this paper, a novel dual‐band dual‐polarized leaky‐wave antenna (LWA) with polarization diversity is proposed using half mode substrate‐integrated waveguide (HMSIW)‐based technology. HMSIW LWAs are generally single band. In this work, by etching simple spiral type slots on the HMSIW cavity, a novel dual‐band dual‐polarized LWA is designed. The proposed antenna resonates at 5.6 and 8.5 GHz. Moreover, the antenna radiates the linearly polarized wave in the lower band and circularly polarized (CP) wave in the higher operating band. Also, in the higher operating band between 8.7 and 9.3 GHz, the proposed overall antenna exhibits both right‐hand circular polarization as well as the left‐hand circular polarization in the near main beam direction. The −10 dB impedance bandwidth of the proposed antenna at the lower and the higher operating bands are 27% (4.86‐6.4 GHz) and 25% (7.4‐9.6 GHz), respectively. In the higher band, the 3‐dB axial ratio bandwidth of 6.6% (8.7‐9.3 GHz) is achieved. The main beam of the antenna can be steered from 19° to 69° in the forward direction in the lower operating band. In the higher operating band, the antenna can steer the CP beam between −17° and −32°. In both the lower bands, the realized peak gain is observed around 13.3 dBi, whereas in the higher band, the realized peak gain is observed around 14 dBi.

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“…The combination of transverse and longitudinal slots as the radiating elements is used for OSB suppression in HMSIW LWA [22]. In [23], a compact CRLH based HMSIW LWA with spiral slots for gain enhancement and radiation efficiency improvement is presented. The main idea is similar to the previously developed HMSIW P-LWA but with the use of folded ground plane, the gain is enhanced by ~2 dBi with OSB suppression.…”

Section: Introductionmentioning

confidence: 99%

Half Mode Substrate Integrated Waveguide Leaky Wave Antenna with Broadside Gain Enhancement for Ku-Band Applications

Agrawal¹,

Belwal²,

Gupta³

2019

RADIOENGINEERING

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A miniaturized frequency scanned leaky wave antenna (LWA) based on half mode substrate integrated waveguide (HMSIW) with open stop-band suppression is proposed. The modified cross-slot is etched on the top of HMSIW as the radiating element. The folded and unfolded ground plane designs of the proposed HMSIW LWA are compared and analyzed with respect to their Bloch impedance characteristics and it is found that further miniaturization and gain improvement at broadside by ~ 2 dBi are achieved for folded ground plane design. The proposed LWA scans a region from -40° to +24° as the frequency range increases from 12 to 17 GHz with broadside at 15.5 GHz. The HMSIW LWA with folded ground plane is fabricated and its performance is experimentally measured showing the close agreement between the simulation and the measured results. KeywordsMiniaturization, folded ground plane, half mode substrate integrated waveguide, broadside gain enhancement, leaky wave antenna

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Composite right/left‐handed based compact and high gain leaky‐wave antenna using complementary spiral resonator on HMSIW for Ku band applications

Cited by 43 publications

References 31 publications

A compact CRLH metamaterial with wide band negative index characteristics

A compact CRLH metamaterial with wide band negative index characteristics

Dual‐band dual‐polarized leaky‐wave structure with forward and backward beam scanning for circular polarization‐flexible antenna application

Half Mode Substrate Integrated Waveguide Leaky Wave Antenna with Broadside Gain Enhancement for Ku-Band Applications

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