Abstract
This article presents compact and novel shape ring slotted antenna array operating at mmWave band on central frequency of 28 GHz. The proposed structure designed at 0.256 mm thin Roggers 5880 is composed of a ring shape patch with a square slot etched at the top mid-section of partial ground plane. Through optimizing the ring and square slot parameters high bandwidth of 8 GHz is achieved ranging from 26 to 32 GHz with simulated gain of 3.95 dBi and total efficiency of 96% for single element. The proposed structure is further transformed in a 4 element linear array manner. With compact dimensions of 20 mm × 22 mm for array, the proposed antenna delivers high simulated gain of 10.7 dBi and is designed in such a way that it exhibits dual beam response over the entire band of interest and simulated results well agree with fabricated prototype measurements.
Highlights
Antenna DesignWhile designing the model, the ground plane was partial and a square-shaped slot was removed
5G technology offers immensely high data rate characteristics with low latency over a whole communication channel
While designing the model, the ground plane was partial and a square-shaped slot was removed. This single element works as a simple circular patch antenna but the ground plane is partial
Summary
While designing the model, the ground plane was partial and a square-shaped slot was removed This single element works as a simple circular patch antenna but the ground plane is partial. This is done to achieve dual radiation patterns within a desired frequency range. This structure is designed using a full electromagnetic wave computer software CST, fabricated using LPKF D104 milling machine, and measured using Anritsu vector network analyzer (VNA).
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