A “La” Shape Antenna for High Frequencies Applications

2020 ◽  
pp. 1-14
Author(s):  
Anurag Saxena
Keyword(s):  
Dielectric Constant ◽  
Return Loss ◽  
Resonant Frequencies ◽  
Polar Plot ◽  
High Frequencies ◽  
Copper Material ◽  
Smith Chart

In this chapter, a ‘ला' shape antenna for high frequencies is designed which has been simulated under CST software using copper material (i.e., FR-4). The dielectric constant of this material is 4.4. The return loss of ‘ला' shaped antenna is -28 dB at 6.774 giga-hertz and -19 dB at 7.7 GHz resonant frequencies. It covers the bandwidth from 6.555 GHz to 7.122 GHz and 7.38 GHz to 8.07 GHz. In this chapter, simulated results like polarization, smith chart, return loss graph, 2-D pattern, 3-D pattern, and polar plot are presented.

Racket Shape Textile Antenna for Triple-Band Frequency Applications

2021 ◽  
pp. 165-179
Author(s):  
Akanksha Lohia ◽  
Jyotsna Pal ◽  
Nishi Kushwaha ◽  
Supriya Shreevas
Keyword(s):  
Dielectric Constant ◽  
Radiation Pattern ◽  
Parametric Study ◽  
Textile Material ◽  
Resonant Frequencies ◽  
Band Frequency ◽  
Textile Antenna ◽  
X Band ◽  
Smith Chart ◽  
Triple Band

The chapter explores a racket shaped antenna that operates in triple band frequency configuration. The main advantage of this antenna is that the design uses wearable textile material as a substrate. Here, jeans material is used as a substrate whose dielectric constant is 1.7 and thickness is 1mm. The designing and simulation are done with the help of CST software. The anticipated antenna operates in C-band and X-band providing three resonant frequencies 7.335GHz, 8 GHz, and 8.38 GHz. Different analyses have been done using CST software based on parameters like return loss, radiation pattern, smith chart, polarization, etc. For obtaining the best result, parametric study has also been done by varying the geometry of the design.

A Diamond Cut Leather Substrate Antenna for BAN (Body Area Network) Application

2021 ◽  
pp. 54-59
Author(s):  
Raghav Agrawal ◽  
Pramod Sharma ◽  
Anurag Saxena
Keyword(s):  
Dielectric Constant ◽  
Resonant Frequency ◽  
Return Loss ◽  
Body Area Network ◽  
Area Network ◽  
Body Area ◽  
Polar Plot ◽  
Network Applications ◽  
Network Application

In this chapter, a diamond cut shape antenna has been simulated under CST software using twisting material (i.e., leather). The dielectric constant of leather material is 1.655. For antenna to be twist, leather substrate is used. The return loss of this newly design diamond cut shaped antenna is -35 dB at 5.5467 GHz resonant frequency. This type of antenna can be useful in BAN (body area network) applications. In this chapter, simulated results like return loss graph, 3-D pattern, and polar plot are presented.

scholarly journals Design of PCB Impedance Matching Inductors and Antennas for Single-Chip Communication Systems

2008 ◽  
Vol 2008 ◽  
pp. 1-7 ◽  
Author(s):  
J. Chung ◽  
S. Hamedi-Hagh
Keyword(s):  
Dielectric Constant ◽  
Resonance Frequency ◽  
Communication Systems ◽  
Return Loss ◽  
Impedance Matching ◽  
Portable Device ◽  
Single Chip ◽  
Matching Network

This paper presents the design of an inductor and an antenna for a portable device with GPS and FM capabilities. The inductor is designed to operate at the lower frequency FM band as part of a matching network and the antenna is designed to operate at the higher frequency GPS L1 band. The FR4 PCB used has a thickness of 1.6 mm with a dielectric constant of 3.8 and has two metallization layers. The inductor is designed with 1.5 mm trace width, 3.5 turns, and has a dimension of 14.5 mm × 14.5 mm. It has an inductance of 95 nH, a resistance of 2.9 Ω, a self-resonance frequency of 500 MHz, and a maximum Q of 51 from 100 MHz to 200 MHz (FM band). The antenna has a dimension of 49 mm × 36 mm and is designed to operate at 1.5754 GHz L1 band. It also has a return loss of −36 dB and a measured bandwidth of 250 MHz.

Comb Shaped Triple Band Microstrip Antenna for Wireless Communication

2021 ◽  
Vol 9 (4) ◽  
pp. 379-382
Keyword(s):  
Dielectric Constant ◽  
Wireless Communication ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Experimental Results ◽  
High Frequency Structure Simulator ◽  
Frequency Structure ◽  
Triple Band

A comb shaped microstrip antenna is designed by loading rectangular slots on the patch of the antenna. The antenna resonating at three different frequencies f1 = 5.35 GHz, f2 = 6.19 GHz and f3= 8.15 GHz. The designed antenna is simulated on High Frequency Structure Simulator software [HFSS] and the antenna is fabricated using substrate glass epoxy with dielectric constant 4.4 having dimension of 8x4x0.16 cms. The antenna shows good return loss, bandwidth and VSWR. Experimental results are observed using Vector Analyzer MS2037C/2.

scholarly journals A Novel Circular Slotted Microstrip-Fed Patch Antenna with three Triangle Shape Defected Ground Structure for Multiband Applications

2018 ◽  
Vol 7 (3) ◽  
pp. 56-63 ◽  
Author(s):  
A. Jaiswal ◽  
R. K. Sarin ◽  
B. Raj ◽  
S. Sukhija
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Impedance Matching ◽  
Ground Plane ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Resonant Frequencies ◽  
Wireless Applications ◽  
Rectangular Patch ◽  
Miniaturized Antenna

In this paper, a novel circular slotted rectangular patch antenna with three triangle shape Defected Ground Structure (DGS) has been proposed. Radiating patch is made by cutting circular slots of radius 3 mm from the three sides and center of the conventional rectangular patch structure and three triangle shape defects are presented on the ground layer. The size of the proposed antenna is 38 X 25 mm2. Optimization is performed and simulation results have been obtained using Empire XCcel 5.51 software. Thus, a miniaturized antenna is designed which has three impedance bandwidths of 0.957 GHz,  0.779 GHz, 0.665 GHz with resonant frequencies at 3.33 GHz, 6.97 GHz and 8.59 GHz and the corresponding return loss at the three resonant frequencies are -40 dB, -43 dB and -38.71 dB respectively. A prototype is also fabricated and tested. Fine agreement between the measured and simulated results has been obtained. It has been observed that introducing three triangle shape defects on the ground plane results in increased bandwidth, less return loss, good radiation pattern and better impedance matching over the required operating bands which can be used for wireless applications and future 5G applications.

scholarly journals Circle Microstrip Antenna Simulation for Frequency 3.5 GHz

2021 ◽  
Vol 1 (1) ◽  
pp. 1-4
Author(s):  
Wildan Wildan ◽  
Dwi Astuti Cahyasiwi ◽  
Syah Alam ◽  
Mohd Azman Zakariya ◽  
Harry Ramza
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Return Loss ◽  
Tangent Loss ◽  
Substrate Thickness ◽  
Total Radiation ◽  
Circular Patch Antenna ◽  
Working Frequency

This research proposed microstrip circular patch antenna simulation at a working frequency 3500 MHz. The antenna has been designed using a Duroid RT5880 substrate with dielectric constant (εr) = 2.2, substrate thickness (h) = 1.575 mm, and tangent loss = 0.0009 with microstrip line feeding. The simulation result, return loss value obtained -26.385, VSWR value 1.09, gain value 7.64 dBi, total radiation efficiency value -0.6489 dB, and bandwidth value 72 MHz (3468.8 MHz – 3541.9 MHz).

UWB RECTANGULAR SLOTTED MICROSTRIP PATCH ANTENNA IN PROXIMITY OF HUMAN ARM MODEL

2016 ◽  
Vol 78 (5-4) ◽  
Author(s):  
Muhammad Syafiq Noor Azizi ◽  
Azahari Salleh ◽  
Adib Othman ◽  
Najmiah Radiah Mohamad ◽  
Nor Azlan Aris ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Free Space ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Ultra Wideband ◽  
Uwb Antenna ◽  
Study Behavior ◽  
Microstrip Patch ◽  
Human Arm

In this paper, we study behavior of Ultra wideband antenna which is Rectangular Slotted Microstrip Patch Antenna. Then, the antenna operated in proximity of human arm model. Furthermore, the antenna is designed on a FR-4 substrate with dielectric constant of 4.3 and thickness 1.6 mm. This antenna simulated in CST Microwave Studio software. In order to test the antenna, an arm model was numerically modelled. The study shows properties and performances of antenna when it is placed in three situations which in free space, outside and inside of human arm model. The properties of UWB antenna in term of return loss, gain, directivity and radiation pattern in the three situations is simulated and discussed.

MULTIBAND CPW-FED SLOT ANTENNA FOR WLAN/WIMAX APPLICATIONS

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
Igbafe Orikumhi ◽  
Mohamad Rijal Hamid ◽  
Ali Nyangwarimam Obadiah
Keyword(s):  
Radiation Pattern ◽  
Return Loss ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Slot Antenna ◽  
Frequency Range ◽  
Resonant Frequencies ◽  
Good Agreement

A square slot antenna fed by a coplanar waveguide (CPW) is presented in this paper. The design consist of two pairs of “F” shaped planar strips placed within a square slotted ground. The strips are used to excite multiple resonant frequencies, the strips are connected to the ground plane by means of ideal switches. The proposed antenna has achieved multiple resonant frequencies of 2.4/5.2/5.8 GHz for WLAN and 3.5/5.5 for WiMAX applications. The measured results shows a good agreement with the simulated results in terms of return loss, radiation pattern and gain. The proposed antenna is designed for the frequency range of 2 GHz to 7 GHz which makes it suitable for Bluetooth, WLAN and WiMAX applications. 

scholarly journals A Compact Broadband Antenna with Dual-Resonance for Implantable Devices

Micromachines ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 59 ◽  
Author(s):  
Rongqiang Li ◽  
Bo Li ◽  
Guohong Du ◽  
Xiaofeng Sun ◽  
Haoran Sun
Keyword(s):  
Patch Antenna ◽  
Absorption Rate ◽  
Return Loss ◽  
Specific Absorption Rate ◽  
Implantable Devices ◽  
Impedance Bandwidth ◽  
Compact Structure ◽  
Resonant Frequencies ◽  
Broadband Antenna ◽  
Dual Resonance

A compact broadband implantable patch antenna is designed for the field of biotelemetry and experimentally demonstrated using the Medical Device Radiocommunications Service (MedRadio) band (401–406 MHz). The proposed antenna can obtain a broad impedance bandwidth by exciting dual-resonant frequencies, and has a compact structure using bent metal radiating strips and a short strategy. The total volume of the proposed antenna, including substrate and superstrate, is about 479 mm3 (23 × 16.4 × 1.27 mm3). The measured bandwidth is 52 MHz (382–434 MHz) at a return loss of −10 dB. The resonance, radiation and specific absorption rate (SAR) performance of the antenna are examined and characterized.

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