scholarly journals ANALYSIS OF UWB BASED ANTENNA FOR WIRELESS COMMUNICATION

2020 ◽  
Vol 5 (2) ◽  
pp. 30-34
Author(s):  
Shetty Sagar ◽  
Hajare Rohit ◽  
Kriti Gupta ◽  
Bhagat Namrata
Keyword(s):  
Wireless Communication ◽  
Low Cost ◽  
Sampling Rate ◽  
Ultra Wideband ◽  
Receiver Design ◽  
Analog To Digital ◽  
Position Sensing ◽  
High Sampling Rate ◽  
Low Profile ◽  
Communication Devices

Ultra-wideband wireless communications techniques have many merits, including an extremely simple radio that inherently leads to low-cost design, large processing gain for robust operations in the presence of narrowband interference, covert operations, and fine time resolution for accurate position sensing. However, there are a number of challenges in UWB receiver design, such as capturing multipath energy, inter symbol interference especially in a non-line-of-sight environment, and the need for high-sampling-rate analog-to-digital converters. Microstrip Patch antenna (MPA) provides low profile and low volume, so it is use in a now a days communication devices. In this paper study of past few year shows that most of labour on MPA is targeted on planning compact sized microstrip antenna. A novel ultra-wideband printed monopole antenna can be used in wireless communication devices.

scholarly journals Compact Enhanced CPW-Fed Antenna for UWB Applications

2021 ◽  
Vol 10 (1) ◽  
pp. 15-20
Author(s):  
H. Abdi ◽  
J. Nourinia ◽  
C. Ghobadi
Keyword(s):  
Low Cost ◽  
Impedance Matching ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Compact Antenna ◽  
Low Profile ◽  
Rectangular Slit ◽  
Operating Bandwidth ◽  
Uwb Applications ◽  
Operational Range

This paper presents a compact antenna with co-planar waveguide (CPW) feed line for ultra-wideband (UWB) applications. The proposed antenna consists of a beveled radiating patch with wide rectangular slit at its upper side and a partial ground plane with insertion of symmetrically two-step beveled tapers at its center and sides, which provides a wide operating bandwidth. The antenna is integrated with narrow rectangular-shaped parasitic elements with different lengths placed adjacent to radiant patch to significantly enhance the impedance matching and bandwidth, especially at the upper frequencies. The measured results show an |S11| less than -10 dB bandwidth of 2.5-19.8 GHz with 155% fractional bandwidth. Simulation results are in good agreement with experimental measurements, which exhibits the validity of the proposed design approach. Moreover, the proposed CPW-fed antenna shows omnidirectional radiation patterns with stable gain within the operational range. The proposed compact antenna with low profile, light weight, large frequency bandwidth, ease of fabrication and low cost material is suitable for UWB applications.

scholarly journals A Jug-Shaped CPW-Fed Ultra-Wideband Printed Monopole Antenna for Wireless Communications Networks

2022 ◽  
Vol 12 (2) ◽  
pp. 821
Author(s):  
Sarosh Ahmad ◽  
Umer Ijaz ◽  
Salman Naseer ◽  
Adnan Ghaffar ◽  
Muhammad Awais Qasim ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Uwb Antenna ◽  
Compact Size ◽  
Parametric Studies ◽  
Printed Monopole Antenna ◽  
Printed Monopole

A type of telecommunication technology called an ultra-wideband (UWB) is used to provide a typical solution for short-range wireless communication due to large bandwidth and low power consumption in transmission and reception. Printed monopole antennas are considered as a preferred platform for implementing this technology because of its alluring characteristics such as light weight, low cost, ease of fabrication, integration capability with other systems, etc. Therefore, a compact-sized ultra-wideband (UWB) printed monopole antenna with improved gain and efficiency is presented in this article. Computer simulation technology microwave studio (CSTMWS) software is used to build and analyze the proposed antenna design technique. This broadband printed monopole antenna contains a jug-shaped radiator fed by a coplanar waveguide (CPW) technique. The designed UWB antenna is fabricated on a low-cost FR-4 substrate with relative permittivity of 4.3, loss tangent of 0.025, and a standard height of 1.6 mm, sized at 25 mm × 22 mm × 1.6 mm, suitable for wireless communication system. The designed UWB antenna works with maximum gain (peak gain of 4.1 dB) across the whole UWB spectrum of 3–11 GHz. The results are simulated, measured, and debated in detail. Different parametric studies based on numerical simulations are involved to arrive at the optimal design through monitoring the effects of adding cuts on the performance of the proposed antennas. Therefore, these parametric studies are optimized to achieve maximum antenna bandwidth with relatively best gain. The proposed patch antenna shape is like a jug with a handle that offers greater bandwidth, good gain, higher efficiency, and compact size.

An Effective CS-BP Algorithm for 2-D DOA Estimation

2011 ◽  
Vol 128-129 ◽  
pp. 62-65
Author(s):  
Yu Yan An ◽  
Sen Sen Bai
Keyword(s):  
Frequency Modulation ◽  
Sampling Rate ◽  
Doa Estimation ◽  
Bp Algorithm ◽  
Basis Pursuit ◽  
Two Dimensional ◽  
Digital Converter ◽  
Analog To Digital ◽  
High Sampling Rate ◽  
Simulation Results

The bandwidth of the direction of arrival (DOA) estimation requires high sampling rate which extends the current analog to digital converter capacity. The paper presents an effective basis pursuit (BP) algorithm based on compressive sensing (CS) signals, which is called CS-BP algorithm, for two-dimensional (2-D) DOA estimation of Linear Frequency Modulation (LFM ). The simulation results verified that the method can effectively reduce the sampling data, and improve DOA estimation performance and efficiency.

scholarly journals A Low Rate Energy Disaggregation using Non-Intrusive Load Monitoring

2019 ◽  
Vol 8 (11) ◽  
pp. 4204-4209
Keyword(s):  
Energy Conservation ◽  
Low Cost ◽  
Sampling Rate ◽  
Energy Usage ◽  
Energy Meter ◽  
High Sampling Rate ◽  
Energy Disaggregation ◽  
Load Monitoring ◽  
The Cost ◽  
Conservation And Management

Nowadays, Energy conservation and management are a must practice due to the exponentially increasing energy usage. One solution for providing for energy conservation is appliance load monitoring. Load monitoring approach should be simple and of low cost in order to be massively deployable. Non-Intrusive load monitoring is a better approach since it can disaggregate energy at the cost of single energy meter. A low sampling rate energy meter incurs low cost compared to a high sampling rate energy meter. In this paper a less complex, low cost energy disaggregation approach has been proposed

scholarly journals A Cross-Joint Vivaldi Antenna Pair for Dual-Pol and Broadband Testing Capabilities

2021 ◽  
Vol 21 (3) ◽  
pp. 201-209
Author(s):  
Gwang-Hun Jeon ◽  
Philip Ayiku Dzagbletey ◽  
Jae-Young Chung
Keyword(s):  
Wireless Communication ◽  
Low Cost ◽  
Impedance Matching ◽  
Beam Width ◽  
Communication Devices ◽  
Operating Bandwidth ◽  
Vivaldi Antenna ◽  
Increasing Demand ◽  
Half Power ◽  
Vivaldi Antennas

The non-standalone 5G antenna wireless communication standard and devices operating under Wi-Fi 5, 6, and 6E operate at the 3 GHz frequency bands and above. With the increasing demand for these devices and technologies, it is crucial to test them rapidly and economically for commercial usage. This paper presents a dual-polarized Vivaldi antenna for the over-the-air (OTA) measurement of wireless communication devices used in the 3–7 GHz band. The dual-polarization performance is realized by vertically intersecting two planar Vivaldi antennas and soldering them at the back end. A three-step 1/4 wavelength balun is applied to the input for the wideband impedance matching of the antenna, which is attached to a Teflon holder for easy mounting. It has excellent performance and is designed to be manufactured at low cost. The fabricated antenna was tested in an anechoic chamber and showed S11 less than -10 dB from 2.63–7.15 GH, and a realized gain of more than 5 dBi from 3 GHz and above. A measured half-power beam width of more than 60° was realized with symmetric E/H-plane. Much of the required symmetry was achieved with the designed Teflon holder. The antenna has a measured cross-polarization discrimination of better than 15 dB across the entire operating bandwidth.

scholarly journals Low-Profile Low-Cost Ultra-Wideband Circularly Polarized Slot Antennas

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 160696-160704 ◽  
Author(s):  
Yongsheng Pan ◽  
Yuandan Dong
Keyword(s):  
Low Cost ◽  
Ultra Wideband ◽  
Slot Antennas ◽  
Circularly Polarized ◽  
Low Profile

scholarly journals Conception and Simulation of a 2-Then-1-Bit/Cycle Noise-Shaping SAR ADC

Electronics ◽  
2021 ◽  
Vol 10 (20) ◽  
pp. 2545
Author(s):  
Kihyun Kim ◽  
Sein Oh ◽  
Hyungil Chae
Keyword(s):  
High Speed ◽  
Sampling Rate ◽  
Cmos Process ◽  
Noise Shaping ◽  
Mismatch Error ◽  
Analog To Digital ◽  
Current Sharing ◽  
High Sampling Rate ◽  
Good Energy ◽  
Two Phases

A 2-then-1-bit/cycle noise-shaping successive-approximation register (SAR) analog-to-digital converter (ADC) for high sampling rate and high resolution is presented. The conversion consists of two phases of a coarse 2-bit/cycle SAR conversion for high speed and a fine 1-bit/cycle noise-shaping SAR conversion for high accuracy. The coarse conversion is performed by both voltage and time comparison for low power consumption. A redundancy after the coarse conversion corrects the error caused by a jitter noise during the time comparison. Additionally, a mismatch error between signal and reference paths is eliminated with the help of a tail-current-sharing comparator. The proposed ADC was designed in a 28 nm CMOS process, and the simulation result shows a 68.2 dB signal-to-noise distortion (SNDR) for a sampling rate of 480 MS/s and a bandwidth of 60 MHz with good energy efficiency.

A Linear-Encoder-Based Displacement Sensing Approach for Cost-Sensitive Applications

2010 ◽  
Vol 44-47 ◽  
pp. 1095-1098
Author(s):  
Qi Peng Li ◽  
Ping Fang
Keyword(s):  
Low Cost ◽  
Sampling Rate ◽  
Test System ◽  
Time Sequence ◽  
Electromagnetic Actuator ◽  
High Sampling Rate ◽  
Linear Encoder ◽  
Signal Processing Circuit ◽  
Sequence Generator ◽  
Processing Circuit

A new low-cost displacement sensing approach is put forward. It employs physical multiplication by using multiple linear encoders and differential grating codestrips, and the differential phase configuration is mechanically guaranteed; furthermore, a flash signal processing circuit comprising time sequence generator, counter and D/A with no microprocessors involved is also developed. Theoretical analysis is presented, and a test system using Heds-9730 as the detecting unit is built, and then experiments on an electromagnetic actuator are carried out. The measured results agreed well with the original, and the results prove that the sensing approach can achieve high sampling rate, high resolution and cost saving, thus providing an effective displacement measuring means for cost-sensitive applications.

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