Application of Novel Cavity-Backed Proximity-Coupled Microstrip Patch Antenna to Design Broadband Conformal Phased Array

Sun, Dan; Wang, Dou; You, Lizhi

doi:10.1109/lawp.2010.2089490

Cited by 49 publications

(31 citation statements)

References 8 publications

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“…The reflection coefficients for all designed antennas are about -20 dB with some frequency shifting except for Antenna 4 which has the value of -12 dB. This is due to the structure of Antenna 4 causes significant mutual coupling between two radiating patches, influencing the return loss of the radiating elements [10]. 979 Figure 5 shows simulated far-field for four different designed antennas.…”

Section: Resultsmentioning

confidence: 96%

5G Fixed Beam Switching on Microstrip Patch Antenna

Kamarudin

2017

IJECE

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5G technology is using millimeter-wave band to improve the wireless communication system. However, narrow transmitter and receiver beams have caused the beam coverage area to be limited. Due to propagation limitations of mm wave band, beam forming technology with multi-beam based communication system, has been focused to overcome the problem. In this letter, a fixed beam switching method is introduced. By changing the switches, four different configurations of patch array antennas are designed to investigate their performances in terms of radiation patterns, beam forming angle, gain, half-power bandwidth and impedance bandwidth at 28 GHz operating frequency for 5G application. Mircostrip antenna is preferred due to its low profile, easy in feeding and array configurations. Three different beam directions had been formed at -15°, 0°, and 15° with half-power bandwidth of range 45˚ to 50˚. Keyword: 5G INTRODUCTIONWireless communication has undergone a tremendous evolution to meet the demand of high traffic capacity due to the drastic increasing usage of smartphones and mobile electronic devices. Begin from 0G technology since 1970s, followed by 1G,2G, and 3G, until today 4G technology, they show a great development on mobile technology from Radio Common Carrier (0G-RCC) to Long Term Evolution Advance (4G-LTEA). In order to meet the fast growing wireless data capacity demands due to increasing users of smartphones, high growth in web and streaming, 5G technology now are highly given attention and undergo a huge research. The 5G technology has huge data capabilities to support multi-Gbps data rates and has ability to gather unrestricted call volumes as well as infinite data broadcast within latest mobile technology [1]. Therefore millimeter-wave communication systems are required.Millimeter-wave communication systems using narrow beams at the transmitter and receiver, which suppress the interference of neighboring beams. The narrow beam also strongly reduces the angular spread of the incoming waves and the multipath components of millimeter waves to be limited. Therefore, by having the beam forming, beam-forming weights can be adjusted to a desired area or location [2]. There are two types of beam forming technology. The first one is fixed beam forming and another is adaptive beam forming [3]. Adaptive beam forming forms effective beams by adapting beam width and beam direction depending on the surrounding state of radio channels. It requires high hardware complexity and needs extra feedback mechanism for beam forming. While in fixed beam forming, beams with a fixed direction and width are generated. Therefore, switched beam forming is introduced as it is simpler and lesser operation system than adaptive beam forming. The concepts of beam steering or beam shifting are developed for scanning array antennas. Scanning array antennas were developed initially for aircraft, maritime and

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Section: Resultsmentioning

confidence: 96%

5G Fixed Beam Switching on Microstrip Patch Antenna

Kamarudin

2017

IJECE

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“…This idea was used in [20] to increase the proximity coupling for single polarization patch antenna. In addition, substrate 1 is added which is severed as a dielectric matching layer for the patch, and it can further broaden the bandwidth of proposed antenna [21]. In order to improve the bandwidth, three substrates all use a low dielectric material Rogers RT/duroid 5880 (ε r = 2.2).…”

Section: Antenna Configuration and Design Principlementioning

confidence: 99%

“…In addition, the slotted ground structure may also produce some backward directed radiation. In [20] and [21], modification of the proximity-coupled microstrip antennas has been introduced, where the slotted ground is replaced by a narrow and low-profile cavity. Such a cavity can overcome the problems mentioned above while maintaining a pretty good broadband performance.…”

Section: Introductionmentioning

confidence: 99%

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A broadband proximity-coupled dual-polarized microstrip antenna with L-shape backed cavity for X-band applications

Liu

Chen

Ren

et al. 2015

AEU - International Journal of Electronics and Communications

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“…[1][2][3]. Dual-polarization capabilities of the antenna are necessary to enhance the channel performance, since a polarization-diversity scheme can be used to mitigate the multi-path fading, polarization mismatch between the transmitter and receiver, or furnish frequency reuse to double the capacities [4,5].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost L-Probe Fed Dual-Polarized Slot Antenna for C-Band Phased-Array Applications

Song¹,

Nie²

2014

PIER Letters

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Abstract-A dual-polarized L-probe fed microstrip patch antenna with high isolation and low crosspolarization levels is proposed. The proposed antenna has been designed and analyzed by using commercially available software -High Frequency Structure Simulator (HFSS) based on the finite element method algorithm and a simple resonant equation and Computer Simulation Technology Microwave Studio (CST MWS) based on the finite-difference-time-domain algorithm. A prototype antenna is built and tested. The return loss has been compared between measured and simulated data under the criterion of VSWR less than 2 through out the designed 4.95 to 5.05 GHz frequency range. The measured isolation between two ports is higher than 22 dB and the gain is larger than 3 dBi. The cross-polarization levels in both E and H planes are better than −21 dB, along with fair regular radiation patterns.

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Application of Novel Cavity-Backed Proximity-Coupled Microstrip Patch Antenna to Design Broadband Conformal Phased Array

Cited by 49 publications

References 8 publications

5G Fixed Beam Switching on Microstrip Patch Antenna

5G Fixed Beam Switching on Microstrip Patch Antenna

A broadband proximity-coupled dual-polarized microstrip antenna with L-shape backed cavity for X-band applications

A Low-Cost L-Probe Fed Dual-Polarized Slot Antenna for C-Band Phased-Array Applications

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