scholarly journals High Gain Superstrate Loaded Membrane Antenna Based on Substrate Integrated Waveguide Technology

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Hamsakutty Vettikalladi
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Substrate Integrated Waveguide ◽  
Rectangular Slot ◽  
Microstrip Patch ◽  
Antenna Impedance ◽  
5 Ghz ◽  
Good Agreement

The design and the results of a single slot coupled substrate integrated waveguide (SIW) fed membrane antenna loaded with a superstrate layer are presented for 94 GHz communication system. The membrane antenna is designed using ANSYS HFSS and consists of 6 layers. The microstrip patch antenna (MPA) placed on the top pyralux substrate layer is excited by means of a longitudinal rectangular slot placed over the SIW structure in the bottom pyralux substrate. The simulated antenna impedance bandwidth is found to be 5 GHz (91.5–96.5 GHz) with a gain of 7 dBi. In order to improve the gain a superstrate layer is added above the membrane antenna. The maximum gain achieved is 14.4 dBi with an efficiency of 77.6% at 94 GHz. The results are verified using CST Microwave Studio and are found to be in good agreement.

Membrane antenna array based on substrate integrated waveguide technology for 94 GHz communication systems

2015 ◽  
Vol 8 (3) ◽  
pp. 633-641
Author(s):  
Hamsakutty Vettikalladi ◽  
Muhammad Kamran Saleem ◽  
Majeed A.S. Alkanhal
Keyword(s):  
High Frequency ◽  
Communication Systems ◽  
Impedance Bandwidth ◽  
Single Element ◽  
Substrate Integrated Waveguide ◽  
Rectangular Slot ◽  
High Frequency Structure Simulator ◽  
Microstrip Patch ◽  
5 Ghz ◽  
Good Agreement

The design and the results of a single slot coupled substrate integrated waveguide (SIW)-fed membrane antenna and a 1 × 4 array is presented for 94 GHz communication system. The membrane antenna is designed using Ansys high frequency structure simulator and consists of six layers. The microstrip patch antenna placed on the top pyralux substrate layer is excited by means of a longitudinal rectangular slot placed over the SIW structure in the bottom pyralux substrate. The simulated antenna impedance bandwidth is found to be 5 GHz (91.5–96.5 GHz) for both single element and 1 × 4 array. Furthermore, the gain is found to be 7 and 13 dBi for the single element and the 1 × 4 array elements, respectively. The results are verified using Computer Simulation Technology (CST) Microwave Studio and are found to be in good agreement.

A Novel-Shaped Reduced Size FSS-Based Broadband High Gain Microstrip Patch Antenna for WiMAX/WLAN/ISM/X-Band Applications

2021 ◽  
pp. 2150290
Author(s):  
Kalyan Mondal
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Ground Plane ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Microstrip Patch ◽  
Antenna Performance ◽  
Peak Gain

In this work, a broadband high gain frequency selective surface (FSS)-based microstrip patch antenna is proposed. The dimensions of the microstrip antenna and proposed FSS are [Formula: see text] and [Formula: see text]. A broadband high gain reference antenna has been selected to improve antenna performance. The reference antenna offers 1.2[Formula: see text]GHz bandwidth with 6.03[Formula: see text]dBi peak gain. Some modifications have been done on the patch and ground plane to enhance the bandwidth and gain. The impedance bandwidth of 7.70[Formula: see text]GHz (3.42–11.12[Formula: see text]GHz) with 4.9 dBi peak gain is achieved by the microstrip antenna without FSS. The antenna performance is improved by using FSS beneath the antenna structure. The maximum impedance bandwidth of 7.70[Formula: see text]GHz (3.32–11.02[Formula: see text]GHz) and peak gain of 8.6[Formula: see text]dBi are achieved by the proposed antenna with FSS. Maximum co- and cross-polarization differences are 21[Formula: see text]dB. The simulation and measurement have been done using Ansoft Designer software and vector network analyzer. The measured results are in good parity with the simulated one.

Bandwidth enhancement of a planar monopole microstrip patch antenna

2014 ◽  
Vol 8 (2) ◽  
pp. 237-242 ◽  
Author(s):  
Sudeep Baudha ◽  
Dinesh Kumar Vishwakarma
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Communication Services ◽  
Bandwidth Enhancement ◽  
Microstrip Patch ◽  
Peak Gain ◽  
Good Agreement

This paper presents a simple broadband planar monopole microstrip patch antenna with curved slot and partial ground plane. The proposed antenna is designed and fabricated on commercially available FR4 material with εr = 4.3 and 0.025 loss tangent. Bandwidth enhancement has been achieved by introducing a curved slot in the patch and optimizing the gap between the patch and the partial ground plane and the gap between the curved slot and the edge of the patch. Simulated peak gain of the proposed antenna is 4.8 dB. The impedance bandwidth (defined by 10 dB return loss) of the proposed antenna is 109% (2–6.8 GHz), which shows bandwidth enhancement of 26% as compared with simple monopole antenna. The antenna is useful for 2.4/5.2/5.8-GHz WLAN bands, 2.5/3.5/5.5-GHz WiMAX bands, and other wireless communication services. Measured results show good agreement with the simulated results. The proposed antenna details are described and measured/simulated results are elaborated.

Theoretical Analysis of Gap Coupled Microstrip Patch Antenna

2017 ◽  
Vol 7 (2) ◽  
pp. 567
Author(s):  
Akanksha Gupta ◽  
D K Srivastava ◽  
J.P. Saini
Keyword(s):  
Theoretical Analysis ◽  
Resonant Frequency ◽  
Patch Antenna ◽  
Ground Plane ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Concept Model ◽  
Microstrip Patch ◽  
Parasitic Patch ◽  
Good Agreement

<p class="Author">When a patch is placed close to the fed patch, get excited due to parasitic coupling between the two elements. This proposed work presents theoretical analysis of rectangular gap coupled microstrip patch antenna (R-GCMSA) using circuit concept model, and the effect of gap(g), feed width (W<sub>f</sub>), and feed length on performance of the impedance bandwidth is also studied, it is observe as the gap between the parasitic element is increased resonant frequency shifted towards the parasitic patch resonant frequency for broadening the impedance bandwidth. The maximum impedance bandwidth for the proposed antenna design is 12.7% in the frequency range of 3.24-3.7GHz measured, with rectangular shape ground plane size 6030m.m<sup>2</sup>.the highest directivity achieved is 4dBi.The proposed design is simple in structure and compact in size, proposed design is simulated on IE3D Microwave simulator, the simulated result is in good agreement with obtained theoretical and measured results.</p>

SIW-fed microstrip patch antenna array for circular polarization

2017 ◽  
Vol 9 (9) ◽  
pp. 1877-1881 ◽  
Author(s):  
Laaya Sabri ◽  
Nasrin Amiri ◽  
Keyvan Forooraghi
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
High Radiation ◽  
Microstrip Patch ◽  
X Band ◽  
Good Agreement

A new single-feed aperture-coupled, X-band microstrip patch antenna array with circular polarization (CP) is designed. CP is achieved using indented microstrip patches fed through the slots on a substrate integrated waveguide. The antenna has the high radiation efficiency more than 90% over the operating frequency. Impedance bandwidth (VSWR < 2) and axial ratio bandwidth (AR < 3 dB) of 11.8, and 10.9% is attained, respectively. Good agreement is achieved between simulated and measured results.

scholarly journals Design of Microstrip Patch Antenna for Dual-band Operation using Metal Ring Superstrate

2020 ◽  
Vol 8 (5) ◽  
pp. 4539-4543
Keyword(s):  
Patch Antenna ◽  
Dielectric Substrate ◽  
Microstrip Patch Antenna ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Metal Ring ◽  
Microstrip Patch ◽  
Rectangular Patch ◽  
Lower Band ◽  
Good Agreement

In this paper, a dual-band generation in rectangular microstrip patch antenna (RMPA) using a superstrate metal ring has been proposed. In this configuration, a metal ring is placed above the rectangular patch with the support of two dielectric posts. The metal ring behaves as a superstrate layer and resonator for the lower band, the other band is generated by microstrip patch and hence the combined configuration metal ring and patch gives dual-band characteristics. The lower band resonates at 9 GHz with an impedance bandwidth of 6.8% and higher band at 11.35 GHz with impedance bandwidth of 3.1%. The co-polarized peak gain values at these frequencies are 8.2 dBi and 10.1 dBi respectively. This may be used in applications like airborne and naval-radar. The prototypes are fabricated using commercially available dielectric substrate (RT-Duriod r = 2.2 and thickness h =1.6 mm). The measured results show good agreement with the simulated predictions.

Design of High Gain Broadband Microstrip Patch Antenna for UWB/X/Ku Band Applications

2021 ◽  
pp. 153905
Author(s):  
Tapas Tewary ◽  
Smarajit Maity ◽  
Surajit Mukherjee ◽  
Avisankar Roy ◽  
Partha Pratim Sarkar ◽  
...  
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Ku Band
Sign in / Sign up

Export Citation Format

Share Document