scholarly journals A compact ultra-wideband (42-54 GHz) mm-Wave Substrate Integrated Waveguide (SIW) cavity slot antenna for of future wireless communications

2019 ◽  
Vol 8 (9) ◽  
pp. 548-552 ◽  
Keyword(s):  
Wireless Communications ◽  
Wide Band ◽  
Ultra Wideband ◽  
Slot Antenna ◽  
Ultra Wide Band ◽  
Reflection Coefficients ◽  
Substrate Integrated Waveguide ◽  
Good Efficiency

A compact and robust ultra-wide-band SIW antenna technology is presented. The proposed antenna applies for 42 - 54 GHz applications such as 5 G and future WLAN. The SIW is designed with specific slot configurations. The simulated results show that the SIW antenna resonates throughout the bands of 42 to 54 GHz, making this new antenna cover all applications within this range. The reflection coefficients in all ranges from 42 to 45 GHz are below 10 dB. The antenna achieves good efficiency and gain as well.

Compact Ultra-Wideband Slot Antenna with Dual Band Rejection by Using H-Shape Notch

2019 ◽  
Vol 16 (2) ◽  
pp. 687-690
Author(s):  
T. K. Thivakaran ◽  
A. Sivabalan
Keyword(s):  
Satellite Communication ◽  
Wide Band ◽  
Ultra Wideband ◽  
Dual Band ◽  
Slot Antenna ◽  
Ultra Wide Band ◽  
Radiation Patterns ◽  
Band Frequency ◽  
Rectangular Patch ◽  
Communication Space

The main objective is to design a dual band rejection micro strip patch antenna. In this antenna, H-shaped slots are made in the patch to achieve notched characteristics at two licensed band employed for Wimax and WLAN band. The above mentioned frequency ranges are licensed for WLAN and satellite communication applications. These antennas maintain the Omni-directional radiation patterns and are mostly suited for ultra wide band applications. For wide band operation, the shape of patch has been altered to octagonal just by chamfering the corners of the rectangular patch. The antenna parameters like radiation patterns, VSWR, reflection loss have been described clearly in this section. Radar applications, terrestrial networking and communication, space communications are some of the applications in this ultra wide band frequency range.

scholarly journals Efficient Design of Micro Strip Patch Antenna for the Ultra Wideband (UWB) Applications

2020 ◽  
Vol 8 (5) ◽  
pp. 4517-4520
Keyword(s):  
Patch Antenna ◽  
Wide Band ◽  
Ultra Wideband ◽  
Ultra Wide Band ◽  
Strip Line ◽  
Efficient Design ◽  
Uwb Antennas ◽  
Feeding Technique ◽  
Wide Range ◽  
Uwb Applications

In this research paper a design of Microstip patch antenna for the ultra-wide band (UWB) applications is presented. Ultra wide band antennas has very wide band of operation which accommodates many communication frequencies as set by the federal commission of communication. The UWB antennas is based on the micro strip patch antenna concept and the design of the antenna is based on the stack antenna or multi-layer antenna. Stacking is used in designing for increasing the bandwidth of the antenna so stacking concept is good for the designing of the UWB antenna. The feeding used to feed the antenna is micro strip line feed. Micro strip line feeding technique is one of very popular feeding technique to feed the antenna because its fabrication is very simple. The proposed design is simulated in the CADFEKO software which is very useful for the design and analysis of a wide range of electromagnetic problem. It has many applications to simulate 3D electromagnetic circuit included antenna design, micro strip antenna and circuits. The simulation results shows the antenna bandwidth of 13.9 GHz from 2.6 to 16.5 GHz. So we can clearly say that the antenna is ultra-wide band in nature.

scholarly journals Reconfigurable 2×1 CPW-Fed Rectangular Slot Antenna Array (RSAA) Based on Graphene for Wireless Communications

2021 ◽  
Vol 36 (6) ◽  
pp. 788-795
Author(s):  
Dalia Elsheakh ◽  
Osama Dardeer
Keyword(s):  
Wireless Communications ◽  
Antenna Array ◽  
Coplanar Waveguide ◽  
Ultra Wideband ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Average Gain ◽  
Rectangular Slot ◽  
High Data ◽  
Peak Gain

This article presents a 2×1 CPW ultra wideband rectangular slot antenna array (UWB-RSAA) with a modified circular slot shape to support a high data rate for wireless communications applications. The proposed antenna array dimensions are 0.7λ×0.8λo×0.064λo at the resonant frequency 1.8 GHz. It is fabricated on Rogers RO4003 substrate and fed by using a coplanar waveguide (CPW). A graphene layer is added on one side of the substrate to realize frequency reconfigurability and improve the array gain. The proposed array acquires -10 dB impedance bandwidth of the RSAA that extends from 1.7 GHz to 2.6 GHz, from 3.2 to 3.8 GHz, and from 5.2 GHz to 7 GHz. The proposed array achieved a realized peak gain of 7.5 dBi at 6.5 GHz at 0 Volt bias with an average gain of 4.5 dBi over the operating band. When the graphene bias is increased to 20 Volt, the antenna bandwidth extends from 1 GHz to 4 GHz and from 5 to 7 GHz with a peak gain of 14 dBi at 3.5 GHz and an average gain of 7.5 dBi. The linearly polarized operation of the proposed array over the operating bands makes it suitable for short-range wireless communications .

scholarly journals Dual Band Notch, Compact, Low profile, Hybrid Ultra Wideband RDRA

2020 ◽  
Vol 10 (1) ◽  
pp. 166-169
Keyword(s):  
Radiation Pattern ◽  
Dielectric Resonator ◽  
Surface Current ◽  
Wide Band ◽  
Ultra Wideband ◽  
Dual Band ◽  
Ultra Wide Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Ground Structure

This paper presents a novel, compact Ultra Wide Band , Asymmetric Ring Rectangular Dielectric Resonator Antenna (ARRDRA), which is a unique combination of Thin Dielectric Resonator (DR), Fork shape patch and defective ground structure. The base of the proposed antenna is its Hybrid structure, which generates fundamental TM, TE and higher order modes that yields an impedance bandwidth of 119%. Proposed antenna provides a frequency range from 4.2 to 16.6 GHz with a stable radiation pattern and low cross polarization levels. Peak gain of 5.5 dB and average efficiency of 90% is obtained by the design. Antenna is elongated on a FR4 substrate of dimension 20 x 24x 2.168 mm3 and is particularly suitable for C band INSAT, Radio Altimeter, WLAN, Wi-Fi for high frequencies. Ease in fabrication due to simplicity, compactness, stable radiation pattern throughout the entire bandwidth are the key features of the presented design. Inclusion of Defective ground structure and asymmetric ring not only increases the bandwidth but also stabilize the gain and efficiency due to less surface current. Presented design launch an Ultra Wide Band antenna with sufficient band rejection at 4.48-5.34 and 5.64-8.33 GHz with stable radiation pattern and high gain.

scholarly journals A Novel Compact Microstrip UWB Rectangular Stair Slot Antenna for the Analysis of Return Losses

2019 ◽  
Vol 8 (10) ◽  
pp. 4597-4603 ◽  
Keyword(s):  
Return Loss ◽  
Wide Band ◽  
Directional Pattern ◽  
Slot Antenna ◽  
Ultra Wide Band ◽  
Radiation Patterns ◽  
Uwb Antenna ◽  
Antenna Performance ◽  
Ansoft Hfss ◽  
Radiation Behavior

This article deals with the various designs of a novel compact microstrip fed UWB antenna to investigate the corresponding return losses of different structures. The dimension of the designed antenna is 33 x 19 x 1.9 mm3 with FR4 substrate and it can be operated from 2.846 - 11.7458 GHz. The effects of varying the structure of antenna are to exhibit the investigation of corresponding return losses. Different structures of antenna are simulated in Ansoft HFSS simulator. The results of return losses and radiation patterns are explored with the ultra wide band (UWB) rectangular Stair slot antenna. The modified structure of antenna shows the minimized return loss with an enhanced bandwidth that satisfies good UWB characteristics. Antenna performance can also be explored from the radiation behavior of the antenna which is relatively omni-directional pattern for rectangular Stair slot antenna

Compact slot antenna for ultra‐wide band applications

2014 ◽  
Vol 8 (3) ◽  
pp. 200-205 ◽  
Author(s):  
Bing Gong ◽  
Xue Shi Ren ◽  
Ying Yin Zeng ◽  
Lin Hua Su ◽  
Qiu Rong Zheng
Keyword(s):  
Wide Band ◽  
Slot Antenna ◽  
Ultra Wide Band

scholarly journals A PROXIMITY-FED ANNULAR SLOT ANTENNA WITH DIFFERENT A BAND-NOTCH MANIPULATIONS FOR ULTRA-WIDE BAND APPLICATIONS

2012 ◽  
Vol 37 ◽  
pp. 289-306 ◽  
Author(s):  
Elsayed Esam M. Khaled ◽  
Ayman Ayd Ramadan Saad ◽  
Deena A. Salem
Keyword(s):  
Wide Band ◽  
Slot Antenna ◽  
Ultra Wide Band ◽  
Annular Slot
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