Parametric optimization of Low-profile V-Band antenna for millimeter-wave applications

A novel millimeter wave coplanar waveguide (CPW) fed Fabry-Perot (F-P) antenna with high gain, broad bandwidth, and low profile is reported. The partially reflective surface (PRS) and the ground form the F-P resonator cavity, which is filled with the same dielectric substrate. A dual rhombic slot loop on the ground acts as the primary feeding antenna, which is fed by the CPW and has broad bandwidth. In order to improve the antenna gain, metal vias are inserted surrounding the F-P cavity. A CPW-to-microstrip transition is designed to measure the performances of the antenna and extend the applications. The measured impedance bandwidth ofS11less than −10 dB is from 34 to 37.7 GHz (10.5%), and the gain is 15.4 dBi at the center frequency of 35 GHz with a 3 dB gain bandwidth of 7.1%. This performance of the antenna shows a tradeoff among gain, bandwidth, and profile.

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Non-invasive concealed weapon detection and identification using V band millimeter wave imaging radar system

2015 National Conference on Recent Advances in Electronics & Computer Engineering (RAECE) ◽

10.1109/raece.2015.7510202 ◽

2015 ◽

Cited By ~ 5

Author(s):

Smriti Agarwal ◽

Bambam Kumar ◽

Dharmendra Singh

Keyword(s):

Millimeter Wave ◽

Radar System ◽

Millimeter Wave Imaging ◽

Non Invasive ◽

Imaging Radar ◽

V Band ◽

Detection And Identification ◽

Wave Imaging ◽

Concealed Weapon Detection

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

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078718001009 ◽

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.

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