Design and implementation of penta‐band PCB embedded antenna including LTE700 for mobile handset

Abstract

In this article, multi-band antenna covering LTE700/ GSM850/GSM900/DCS1800/PCS1900 for mobile terminal is presented. The proposed capacitive feeding antenna is a IFA type antenna and implemented as a PCB embedded antenna (PEA). Broad bandwidth in low-band is achieved using pattern overlapped capacitive feeding. Simulation is conducted to verify broad low-band and multi-band operation using HFSS and experimental results are also presented.ABSTRACT: In this article, a novel broadband circularly polarized (CP) slot antenna is proposed and fabricated, in which, a simple perturbation configuration with a narrow rectangular slot etched near the square slot is used for perfect CP operation. Through simulating and testing, the broad impedance bandwidth of 57.6% (VSWR < 2.0) and the 3-dB axial ratio bandwidth of 50.2% are achieved. This slot antenna will be widely used in communication field.

A uniplanar printed antenna with an inverted L-shaped coupling feed for LTE/GSM/DCS/PCS/UMTS operations

“…After the LTE specifications have been finalized, a growing number of antenna designs with LTE bands have been reported recently [10–16]. From the above studies, it is worth noting that the most arduous task of designing an LTE antenna is to combine both GSM 850/900 and LTE 700 operating band, which in turn must allow at least a 6‐dB impedance bandwidth of 262 MHz (from 698 to 960 MHz).…”

“…From the above studies, it is worth noting that the most arduous task of designing an LTE antenna is to combine both GSM 850/900 and LTE 700 operating band, which in turn must allow at least a 6‐dB impedance bandwidth of 262 MHz (from 698 to 960 MHz). Thus, to allow such wide bandwidth centered at around 830 MHz, the techniques of using different feeding mechanisms such as the stacked coupled feed [10], overlapped capacitive feed [11], and crossed C‐shaped coupling feed to induce slow wave effects [12] are proposed. Other method such as the loading of inductive shorting strip is also being proposed, so that good impedance matching at the lower band can be achieved [13–16].…”