Design of dual band patch antenna with bandwidth enhancement using complementary defected ground structure

Dash, Jogesh Chandra; Mishra, Guru Prasad; Mangaraj, Biswa Binayak

doi:10.1109/ic3i.2016.7917973

Cited by 6 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The patch antenna works at 5.85 GHz LTE band with good impedance excitation thereby improving the cross-polar response (see Fig. 14) and the dimension of the DGS determines stop band effect by incorporating transmission zero at the frequency of interest [27], [28]. The height between NFDS and the antenna ground plane determines the phase of the partially diffracted wave to cancel out the coupled wave.…”

Section: Explanation Of Decoupling Mechanism In Proposed Two-port Antennamentioning

confidence: 99%

Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications

Dash¹,

Sarkar

2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

In this paper, we propose a closely spaced two-port microstrip patch antenna system with significant isolation enhancement (> 90 dB), which can be deployed for MIMO as well as full-duplex transceiver systems. We deploy a resonant combination of rectangular defected ground structure (DGS) and a near-field decoupling structure (NFDS) in the vicinity of a closely spaced (inter-element spacing = 0.01λ 0 ) two-port microstrip patch antenna system at 5.85 GHz. This drastically reduces the port-to-port mutual coupling (< −90 dB), which can help in self-interference cancellation for full-duplex point of view without any additional circuitry, while still preserving desired impedance matching performance (< −15 dB). The broadside gain of individual antennas in the two port MIMO system is 7.11 dBi, with 97% efficiency and coto-cross-polar level < 25 dB. The proposed concept is validated by full-wave simulation in CST Microwave Studio, as well as experimental results on fabricated prototype. Moreover, MIMO performance metrics such as total active reflection coefficient (TARC), envelop correlation coefficient (ECC) and channel capacity loss (CCL) are analysed using simulation and measurement.

show abstract

Section: Explanation Of Decoupling Mechanism In Proposed Two-port Antennamentioning

confidence: 99%

Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications

Dash¹,

Sarkar

2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

show abstract

“…But recent research has shown that the placement of this structure at a sliding displacement from the underneath position of the feed line can also lead to a good parametric output. Some methods are used to reduce cross-polarization [6,7,8], and some others have focused on the improvement of other parameters like gain, bandwidth, and return loss [9,10,11,12,13]. Good isolation between the co- and cross-polarization (XP), as well as reduced XP levels in the H-plane, have been achieved by implementing symmetric and non-proximal DGS shapes in [6], but a slight gain reduction was observed.…”

Section: Introductionmentioning

confidence: 99%

“…In [9], a circular dumbbell-Shaped DGS was implemented to increase the bandwidth of all three bands, but at the same time, the gain was slightly decreased. In [10], two different but complimentary DGS structures were implemented which lead to increased bandwidth as well as reduced return loss. In [11,12], rectangular and H slots respectively were used to achieve improved parameters.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a Defected Ground-Structured Antenna Loaded with Stub-Slot for 5G Communication

Rahman

Islam

Wong

et al. 2019

Sensors

View full text Add to dashboard Cite

In this paper, a defected ground-structured antenna with a stub-slot configuration is proposed for future 5G wireless applications. A simple stub-slot configuration is used in the patch antenna to get the dual band frequency response in the 5G mid-band and the upper unlicensed frequency region. Further, a 2-D double period Electronic band gap (EBG) structure has been implemented as a defect in the metallic ground plane to get a wider impedance bandwidth. The size of the slots and their positions are optimized to get a considerably high impedance bandwidth of 12.49% and 4.49% at a passband frequency of 3.532 GHz and 6.835 GHz, respectively. The simulated and measured realized gain and reflection coefficients are in good agreement for both operating bandwidths. The overall antenna structure size is 33.5 mm × 33.5 mm. The antenna is fabricated and compared with experimental results. The proposed antenna shows a stable radiation pattern and high realized gain with wide impedance bandwidth using the EBG structure, which are necessary for the requirements of IoT applications offered by 5G technology.

show abstract

“…The proposed antenna has a symmetrical feed as the patch antennas are edge fed. Defected ground structure (DGS) is an evolving technique to enhance the performance of patch antennas (Dash et al, 2016). The antenna's ground plane is defected either symmetrically or asymmetrically to obtain a DGS.…”

mentioning

confidence: 99%

“…The antenna's ground plane is defected either symmetrically or asymmetrically to obtain a DGS. DGS creates a parallel-tuned circuit that offers multiband operation (Dash et al, 2016). As the ground plane is defected, the antenna's radiation efficiency and its directivity are altered.…”

mentioning

confidence: 99%

Bandwidth enhancement for thin substrate UHF RFID patch antenna

Parthiban

2019

International Journal on Smart Sensing and Intelligent Systems

View full text Add to dashboard Cite

This paper presents an unconventional bandwidth enhancement technique for thin substrate UHF RFID linearly polarized patch antennas. The patch antenna is made from polyethylene dielectric substrate and aluminum adhesive strip conductive layers. A microstrip fed rectangular patch antenna is designed to operate between 902 and 928 MHz UHF RFID frequencies. Impedance bandwidth is enhanced by intentional impedance mismatch at the edge of the patch. An 88.98 MHz impedance bandwidth was achieved through a −32% intentional impedance mismatch. Antenna's gain and other parameters were not majorly affected by this technique. This technique is also suitable for other applications operating in 433 MHz or 2.4 GHz. Transceivers that can handle reflected power is recommended to use with this type of bandwidth enhancement.

show abstract

Design of dual band patch antenna with bandwidth enhancement using complementary defected ground structure

Cited by 6 publications

References 11 publications

Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications

Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications

Performance Analysis of a Defected Ground-Structured Antenna Loaded with Stub-Slot for 5G Communication

Bandwidth enhancement for thin substrate UHF RFID patch antenna

Contact Info

Product

Resources

About