Reactive Impedance Surface TM Mode Slow Wave for Patch Antenna Miniaturization [AMTA Corner]

2014 ◽  
Vol 56 (6) ◽  
pp. 279-293 ◽  
Author(s):  
Jiangfeng Wu ◽  
Kamal Sarabandi
Keyword(s):  
Slow Wave ◽  
Patch Antenna ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Antenna Miniaturization ◽  
Tm Mode

Miniaturized bent slotted patch antenna over a reactive impedance surface substrate

2015 ◽  
Vol 8 (2) ◽  
pp. 347-352 ◽  
Author(s):  
Saurabh Kumar ◽  
Dinesh Kumar Vishwakarma
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Low Cost ◽  
Operating Frequency ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Antenna Size ◽  
Antenna Miniaturization ◽  
Current Path ◽  
Good Agreement

A reactive impedance surface (RIS) based miniaturized bent slotted patch antenna is proposed and investigated for S-band applications around 2.39 GHz. Bent slots in the patch reduce the patch antenna size by increasing current path on the patch. Further a RIS substrate with cross-shaped patch elements printed over a grounded dielectric is optimized and investigated for antenna miniaturization. The proposed bent slotted patch antenna over RIS substrate is 38.75% miniaturized with respect to traditional patch antenna at a fixed operating frequency. The proposed antenna reveals an overall volume of 0.280λ0 × 0.280λ0 × 0.036λ0on a low-cost FR4 substrate at 2.39 GHz for S-band applications. The proposed antenna is fabricated and measured for its return loss. The measured results are in good agreement with simulated one.

scholarly journals Varying operating frequency of concentric circular ring patch antenna using high impedance surface

2018 ◽  
Vol 7 (3.29) ◽  
pp. 57
Author(s):  
Rangarao. Orugu ◽  
Srilatha. Gundapaneni ◽  
N Maryleena ◽  
A K.Chaithanya Varma
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Circular Ring ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Antenna Size ◽  
High Impedance ◽  
Circular Patch Antenna ◽  
High Impedance Surface ◽  
Microstrip Feed

In this paper, we design a concentric circular patch antenna excited by microstrip feed and operates at 5.4269 GHz and 6.9419 GHz. After designing the antenna, we would like to tune the frequency without changing antenna size. For that purpose, we use high impedance surface structure to tune the antenna at two different frequencies. A simple mushroom like structure is used as high impedance surface. We will analyze antenna parameters like return loss, gain, directivity, radiation patterns, efficiency, proposed antenna with and without high impedance surfaces and compare the results.  

scholarly journals Miniaturized Circularly Polarized Stacked Patch Antenna on Reactive Impedance Surface for Dual-Band ISM and WiMAX Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Kush Agarwal ◽  
Saugata Dutta
Keyword(s):  
Frequency Band ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Dual Band ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Circularly Polarized ◽  
Microstrip Patch ◽  
Lower Band ◽  
Lower Frequency Band

This paper proposes a compact microstrip patch antenna for operating in 2.4 GHz ISM and 3.5 GHz WiMAX bands with circularly polarized (CP) radiation. The CP radiation in dual-bands is a result of two multilayered truncated corner stacked square patches, while the reactive impedance surface (RIS) is used for antenna size miniaturization for the lower operating frequency band. Since the overall lateral antenna dimensions are controlled by the lower frequency band (higher wavelength), reducing the electrical size of the antenna for lower band results in overall smaller antenna dimensions. The measured 3-dB axial ratio bandwidths of the in-house fabricated antenna prototype are 6.1% (2.40–2.55 GHz) for the lower band and 5.7% (3.40–3.60 GHz) for the upper band, while the 10-dBS11bandwidths for the two bands are 8.1% (2.39–2.59 GHz) and 6.9% (3.38–3.62 GHz), respectively. The maximum gain at boresight for the lower band is 2.93 dBic at 2.5 GHz, while the gain for the upper band is 6.26 dBic at 3.52 GHz. The overall volume of the proposed antenna is 0.292λo × 0.292λo × 0.044λo, whereλois the corresponding free-space wavelength at 2.5 GHz.

scholarly journals A Novel GPS Patch Antenna on a Fractal Hi-Impedance Surface Substrate

2006 ◽  
Vol 5 ◽  
pp. 323-326 ◽  
Author(s):  
X. L. Bao ◽  
G. Ruvio ◽  
M. J. Ammann ◽  
M. John
Keyword(s):  
Patch Antenna ◽  
Impédance Surface ◽  
Impedance Surface

Back lobe reduction of patch antenna by using high-impedance surface

2015 ◽  
Author(s):  
Dong Wang Dong Wang ◽  
Xing-Chang Wei Xing-Chang Wei ◽  
Jian-Bo Zhang Jian-Bo Zhang ◽  
Yu-Fei Shu Yu-Fei Shu ◽  
De-Cao Yang De-Cao Yang
Keyword(s):  
Patch Antenna ◽  
Impédance Surface ◽  
Impedance Surface ◽  
High Impedance ◽  
High Impedance Surface
Sign in / Sign up

Export Citation Format

Share Document