A novel approach for post fabrication fine tuning and matching of microstrip patch antenna using adjustable air pocket in substrate layer

2011 ◽  
Author(s):  
Anup Kr. Bordoloi ◽  
Pranjal Borah ◽  
Satyajib Bhattacharyya ◽  
Nidhi S. Bhattacharyya
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Fine Tuning ◽  
Microstrip Patch ◽  
Air Pocket ◽  
Substrate Layer ◽  
Novel Approach

scholarly journals Broadband and Efficient Full Wave Rectenna for Wireless Energy

2019 ◽  
Vol 8 (4) ◽  
pp. 395-399
Keyword(s):  
Energy Transfer ◽  
Patch Antenna ◽  
Schottky Diodes ◽  
Microstrip Patch Antenna ◽  
Wireless Energy Transfer ◽  
Ism Band ◽  
Microstrip Patch ◽  
Full Wave ◽  
Novel Approach ◽  
Half Wave

This paper presents a novel approach to realize a broadband full wave rectenna for wireless energy transfer at 2.45 GHz ISM band. The full wave rectenna structure is designed using a center shorted dual edge feed microstrip patch antenna and two Schottky diodes. This antenna is inherently broadband in nature and can provide differential voltage at its two feed points. An optimized full wave rectenna is fabricated and tested. The proposed rectenna provides more conversion efficiency than a rectenna with similar antenna and conventional half wave rectifier.

scholarly journals A Novel Approach for Production Challenges of Flexible Microstrip Patch Antenna

2019 ◽  
pp. 7-12
Author(s):  
Hilal Koc Polat
Keyword(s):  
Resonance Frequency ◽  
Patch Antenna ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Perfect Conductor ◽  
Sem Images ◽  
Silver Paste ◽  
Flexible Materials ◽  
Microstrip Patch ◽  
Novel Approach

It is unavoidable to decrease the thickness of the substrate in order to obtain enough flexibility. Decreasing the height of the substrate lowers the gain of antenna and its bandwidth. Thus, it is challenging to provide operability for the flexible materials and it requires new approaches. This paper is shown that the using nano silver paste for the designed antenna causes better return loss rates (S11) and bandwidth. Also, the effect of sintering temperatures on the response of the antenna is analyzed for the range of 150 ° C to 350 ° C. The highest resonance frequency and the lowest return loss are observed at 350 ° C in this range. The SEM images of the antenna surfaces show that the nanoparticles in the paste group together with increasing sintering temperatures. When compared to the perfect conductor silver, better return loss and bandwidth are obtained.

scholarly journals A Novel Approach for Production Challenges of Flexible Microstrip Patch Antenna

2019 ◽  
Vol 1 (1) ◽  
pp. 7-12
Author(s):  
Hilal Koc Polat
Keyword(s):  
Resonance Frequency ◽  
Patch Antenna ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Perfect Conductor ◽  
Sem Images ◽  
Silver Paste ◽  
Flexible Materials ◽  
Microstrip Patch ◽  
Novel Approach

It is unavoidable to decrease the thickness of the substrate in order to obtain enough flexibility. Decreasing the height of the substrate lowers the gain of antenna and its bandwidth. Thus, it is challenging to provide operability for the flexible materials and it requires new approaches. This paper is shown that the using nano silver paste for the designed antenna causes better return loss rates (S11) and bandwidth. Also, the effect of sintering temperatures on the response of the antenna is analyzed for the range of 150 ° C to 350 ° C. The highest resonance frequency and the lowest return loss are observed at 350 ° C in this range. The SEM images of the antenna surfaces show that the nanoparticles in the paste group together with increasing sintering temperatures. When compared to the perfect conductor silver, better return loss and bandwidth are obtained.

scholarly journals Breathable Textile Rectangular Ring Microstrip Patch Antenna at 2.45 GHz for Wearable Applications

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1635
Author(s):  
Abdul Wahab Memon ◽  
Igor Lima de Paula ◽  
Benny Malengier ◽  
Simona Vasile ◽  
Patrick Van Torre ◽  
...  
Keyword(s):  
Water Vapor ◽  
Patch Antenna ◽  
Ground Plane ◽  
Water Vapor Permeability ◽  
Air Permeability ◽  
Microstrip Patch Antenna ◽  
Vapor Permeability ◽  
Microstrip Patch ◽  
Novel Approach ◽  
Easy Integration

A textile patch antenna is an attractive package for wearable applications as it offers flexibility, less weight, easy integration into the garment and better comfort to the wearer. When it comes to wearability, above all, comfort comes ahead of the rest of the properties. The air permeability and the water vapor permeability of textiles are linked to the thermophysiological comfort of the wearer as they help to improve the breathability of textiles. This paper includes the construction of a breathable textile rectangular ring microstrip patch antenna with improved water vapor permeability. A selection of high air permeable conductive fabrics and 3-dimensional knitted spacer dielectric substrates was made to ensure better water vapor permeability of the breathable textile rectangular ring microstrip patch antenna. To further improve the water vapor permeability of the breathable textile rectangular ring microstrip patch antenna, a novel approach of inserting a large number of small-sized holes of 1 mm diameter in the conductive layers (the patch and the ground plane) of the antenna was adopted. Besides this, the insertion of a large number of small-sized holes improved the flexibility of the rectangular ring microstrip patch antenna. The result was a breathable perforated (with small-sized holes) textile rectangular ring microstrip patch antenna with the water vapor permeability as high as 5296.70 g/m2 per day, an air permeability as high as 510 mm/s, and with radiation gains being 4.2 dBi and 5.4 dBi in the E-plane and H-plane, respectively. The antenna was designed to resonate for the Industrial, Scientific and Medical band at a specific 2.45 GHz frequency.

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