scholarly journals Study the Effect of Using Low-Cost Dielectric Lenses with Printed Log-Periodic Dipole Antennas for Millimeter-Wave Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Osama M. Haraz ◽  
Abdel Razik Sebak ◽  
Saleh Alshebeili
Keyword(s):  
Millimeter Wave ◽  
Low Cost ◽  
Side Lobe ◽  
Dipole Antenna ◽  
Impedance Bandwidth ◽  
60 Ghz ◽  
V Band ◽  
Wave Radar ◽  
Dielectric Lens ◽  
Peak Gain

Design of V-band high-gain printed log periodic dipole array (PLPDA) antenna loaded with a low-cost spherical dielectric lens is introduced. The proposed antenna consists of microstrip-line-fed log-periodic dipole antenna designed to operate in the V-band with a peak gain of 12.64 dBi at 60 GHz. To enhance the antenna gain, a dielectric lens is installed. The antenna prototype is fabricated and then tested experimentally using Agilent E8364B PNA Network Analyzer. Experimental results agree well with the simulated ones. The simulated results show that the proposed antenna can work from 42 GHz up to 82 GHz with a fractional impedance bandwidth of 64.5% covering the whole V-band (50–75 GHz). At 60 GHz, the proposed antenna has peak gain of 26.79 dBi with a gain variation of 3.5 dBi across the whole V-band with stable radiation patterns over the operating band. The proposed PLPDA antenna achieves good side-lobe suppression, excellent front-to-back ratio in bothE- andH-planes, and low cross-polarization levels over the entire frequency range. These unique features will make this antenna suitable for different interesting applications such as millimeter-wave radar and imaging applications.

scholarly journals Flexible substrate technology for millimeter wave wireless power transmission

2016 ◽  
Vol 3 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Zhening Yang ◽  
Alexandru Takacs ◽  
Samuel Charlot ◽  
Daniela Dragomirescu
Keyword(s):  
Millimeter Wave ◽  
Flip Chip ◽  
Power Transmission ◽  
Flexible Substrate ◽  
Dipole Antenna ◽  
60 Ghz ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Network Nodes ◽  
V Band

In this paper, a technology based on thin flexible polyimide substrate (Kapton) to develop antennas for millimeter wave wireless power transmission is presented. Firstly, we characterize the Kapton polyimide (relative permittivity and loss tangent) using a ring resonator method up to V band. A 60 GHz patch antenna is designed, fabricated, and measured to validate our technology. Crossed-dipoles array antennas at Kuband and K band for energy harvesting are also designed, fabricated, and measured. Then a prototype of crossed-slot dipole antenna at V band is proposed. Finally, a resistivity characterization of Au bump used in flip-chip packaging is done, which leads us one step further toward aheterogeneous integration on flexible substrate of different components for Wireless Sensor Network nodes.

scholarly journals Millimeter Wave Antenna with Mounted Horn Integrated on FR4 for 60 GHz Gbps Communication Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Waleed Tariq Sethi ◽  
Hamsakutty Vettikalladi ◽  
Majeed A. Alkanhal
Keyword(s):  
Millimeter Wave ◽  
Communication Systems ◽  
High Gain ◽  
Impedance Bandwidth ◽  
60 Ghz ◽  
Antenna Gain ◽  
Microstrip Patch ◽  
V Band ◽  
Wave Antenna ◽  
Millimeter Wave Antenna

A compact high gain and wideband millimeter wave (MMW) antenna for 60 GHz communication systems is presented. The proposed antenna consists of a multilayer structure with an aperture coupled microstrip patch and a surface mounted horn integrated on FR4 substrate. The proposed antenna contributes impedance bandwidth of 8.3% (57.4–62.4 GHz). The overall antenna gain and directivity are about 11.65 dBi and 12.51 dBi, which make it suitable for MMW applications and short-range communications. The proposed antenna occupies an area of 7.14 mm × 7.14 mm × 4 mm. The estimated efficiency is 82%. The proposed antenna finds application in V-band communication systems.

scholarly journals Ultra-Wideband Trapezoidal Log-Periodic Antenna Integrated with an Elliptical Lens

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2169
Author(s):  
Syifa Haunan Nashuha ◽  
Gwan Hui Lee ◽  
Sachin Kumar ◽  
Hyun Chul Choi ◽  
Kang Wook Kim
Keyword(s):  
Ultra Wideband ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Antenna Gain ◽  
Transition Structure ◽  
Coplanar Stripline ◽  
Design And Implementation ◽  
Dielectric Lens ◽  
Log Periodic Antenna ◽  
Peak Gain

The design and implementation of an ultra-wideband trapezoidal log-periodic antenna (LPA) integrated with an elliptical dielectric lens are presented. The proposed LPA is fed by an ultra-wideband microstrip-to-coplanar stripline transition structure. In order to improve the radiation patterns and to increase the antenna gain, an elliptical dielectric lens is mounted on the top of the LPA radiator. The design parameters of the elliptical lens integrated with the LPA were optimized through a parametric analysis. The proposed antenna shows an impedance bandwidth (S11 ≤ −10 dB) from 5.2 to 40 GHz, with a peak gain of 17.8 dB.

CPW-fed concurrent, dual band planar antenna for millimeter wave applications

2018 ◽  
Vol 10 (9) ◽  
pp. 1088-1095
Author(s):  
Smriti Agarwal ◽  
Dharmendra Singh
Keyword(s):  
Millimeter Wave ◽  
Coplanar Waveguide ◽  
Cost Effective ◽  
Dual Band ◽  
Single Frequency ◽  
60 Ghz ◽  
Fractional Bandwidth ◽  
High Data ◽  
V Band ◽  
Dual Band Antenna

AbstractIn recent years, millimeter wave (MMW) has received tremendous interest among researchers, which offers systems with high data rate communication, portability, and finer resolution. The design of the antenna at MMWs is challenging as it suffers from fabrication and measurement complexities due to associated smaller dimensions. Current state-of-the-art MMW dual-band antenna techniques demand high precision fabrication, which increases the overall cost of the system. Henceforth, the design of an MMW antenna with fabrication and measurement simplicity is quite challenging. In this paper, a simple coplanar waveguide (CPW) fed single-band MMW antenna operating at 94 GHz (W band) and a dual-band MMW antenna operating concurrently at 60 GHz (V band) and 86 GHz (E band) have been designed, fabricated, and measured. A 50 Ω CPW-to-microstrip transition has also been designed to facilitate probe measurement compatibility and to provide proper feeding to the antenna. The fabricated single frequency 94 GHz antenna shows a fractional bandwidth of 11.2% andE-plane (H-plane) gain 6.17 dBi (6.2 dBi). Furthermore, the designed MMW dual-band antenna shows fractional bandwidth: 2/6.4%, andE-plane (H-plane) gain: 7.29 dBi (7.36 dBi)/8.73 dBi (8.68 dBi) at 60/86 GHz, respectively. The proposed antenna provides a simple and cost-effective solution for different MMW applications.

Packaging and interconnect solutions for a low cost surface-mountable millimeter-wave radar sensor

2011 ◽  
Author(s):  
Stefan Beer ◽  
Heiko Gulan ◽  
Benedikt Ripka ◽  
Philipp Pahl ◽  
Thomas Zwick
Keyword(s):  
Millimeter Wave ◽  
Low Cost ◽  
Radar Sensor ◽  
Millimeter Wave Radar ◽  
Wave Radar ◽  
Cost Surface

scholarly journals A Millimeter-Wave Wideband Circularly Polarized Planar Spiral Antenna Array with Unequal Amplitude Feeding Network

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Huakang Chen ◽  
Yu Shao ◽  
Zhangjian He ◽  
Changhong Zhang ◽  
Zhizhong Zhang
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Printed Circuit Board ◽  
Low Cost ◽  
Axial Ratio ◽  
Circuit Board ◽  
Impedance Bandwidth ◽  
Side Lobe Level ◽  
Archimedean Spiral ◽  
Circularly Polarized

A 2 × 2 wideband circularly polarized (CP) antenna array operating at millimeter wave (mmWave) band is presented. The array element is a wideband CP Archimedean spiral radiator with special-shaped ring slot. The elements are fed by an unequal amplitude (UA) feeding network based on a microstrip line (MSL) power divider. The side lobe level is improved by this UA feeding network. In addition, a cross slot is employed to isolate the elements for decoupling. A prototype is fabricated, and the measured results show that the proposed array achieves an impedance bandwidth (IBW) of 6.31 GHz (22.5% referring to 28 GHz) and an axial ratio bandwidth (ARBW) of 7.32 GHz (26.1% referring to 28 GHz). The peak gain of the proposed array is 11.3 dBic, and the gain is greater than 9.3 dBic within the whole desired band (from 25 GHz to 31 GHz). The proposed array consists of only one substrate layer and can be built by the conventional printed circuit board technology. Attributed to the characteristics of wide bandwidth, simple structure, low profile, and low cost, the proposed antenna array has a great potential in mmWave wireless communications.

A 34 to 36 GHz Vector Modulator for Reflected Power Canceller Techniques in LFMCW Radar

2010 ◽  
Vol 40-41 ◽  
pp. 283-286
Author(s):  
Min Zhang ◽  
Jun Xu ◽  
Xin Kai Cheng
Keyword(s):  
Theoretical Model ◽  
Theoretical Analysis ◽  
Millimeter Wave ◽  
High Performance ◽  
Continuous Wave ◽  
Low Cost ◽  
Wave Radar ◽  
Vital Component ◽  
Vector Modulator ◽  
Reflected Power

In this paper, a 34 to 36 GHz vector modulator for using in low cost and high performance RPC (Reflected Power Canceller) is presented. The key circuit consists of two push-pull (bi-phase) attenuators arranged in phase quadrature and a 3dB quadrature coupler (branch line couplers but not Lange couplers which is different from traditional circuits in Ka band) and a Wilkinson combiner, and then transition from micro-strip to waveguide using antipodal finline. To fully exploit this circuit’s capacity to generate accurate constellations at millimeter-wave frequencies, a generalized theoretical analysis of the (push-pull) vector modulator is presented. Based on the theoretical model and the measured results, the I-Q (push-pull) vector modulator promises to be a vital component for the realization of reflected power canceller in LFMCW (Linear Frequency Modulated Continuous Wave) radar.

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