Study of the capacitively fed microstrip antenna element

Vandenbosch, Guy A. E.; Capelle, A.R. Van de

doi:10.1109/8.362807

Cited by 98 publications

(39 citation statements)

References 9 publications

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“…Various wideband antennas are designed to suit the applications in mobile communication technology with multi-band,multi-polarization and multi-purpose, such as the U-slotted patch antennas [1], capacitive feed [2], L-shaped probe feed [3] and so on. A differential-fed antenna with broadband and low cross-polarization was demonstrated in [4].…”

Section: Introductionmentioning

confidence: 99%

A broadband circular polarization patch antenna with differential-feeding

Zhang

Xia

2009

2009 International Conference on Microwave Technology and Computational Electromagnetics (ICMTCE 2009)

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Abstract� A broadband circular polarization patch antenna, differential-fed by a pair of folded plate, is proposed. The use of the two patches can broaden the bandwidth and the differential-feeding can symmetrical bandwidth pattern. (V SWR<2) provide a good The impedance of the proposed antenna is 38. 5%. The axis ratio (AR) at the centre frequency of 2 GHz is 2.3 dB in measurement. Besides, the radiation pattern, both E-plane and H-plane, are symmetrical respectively.

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Section: Introductionmentioning

confidence: 99%

A broadband circular polarization patch antenna with differential-feeding

Zhang

Xia

2009

2009 International Conference on Microwave Technology and Computational Electromagnetics (ICMTCE 2009)

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“…Figure 1a illustrates the PIFA-as-a-package concept used as the basis for our tunable ESA. A capacitive feed is added to the traditional PIFA for the additional degree of impedance matching freedom [3]. The PIFA is then capacitively loaded to reduce its electrical length [4].…”

Section: Introductionmentioning

confidence: 99%

Tunable electrically small UHF PIFA-as-a-package

Feldner

Rodenbeck

Christodoulou³

2006

2006 IEEE Antennas and Propagation Society International Symposium

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A tunable electrically small PIFA-as-a-package antenna for miniature wireless device applications has been developed using conventional printed circuit board processing techniques and commercial-off-the-shelf surface mount switches. The design is scalable to any frequency and form factor, while enabling adaptive tuning of the characteristically narrow band resonance of electrically small antennas. Our UHF prototype measures less than 2" (.08λ) on its longest side and provides approximately9dBi of gain from 419-472 MHz. Simulated and measured results will be discussed in the presentation.

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“…The top conducting layer of the feed PCB and the bottom conducting layer of the slot PCB cover the edge-plated cavity, implemented by the stacked edge-plated FR-4 PCBs, on both sides to form an air-filled rectangular cavity resonator. A capacitive feeding mechanism, similar to [42], is adopted. Figs.…”

Section: B Air-filled Substrate-integrated-waveguide Cavity-backed Smentioning

confidence: 99%

Passive Opto-Antenna as Downlink Remote Antenna Unit for Radio Frequency Over Fiber

Caytan

Bogaert

et al. 2018

J. Lightwave Technol.

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Abstract-A novel remote antenna unit, intended for application in the downlink of an analog radio frequency over fiber system, is proposed, whose radiated power originates entirely from the optical signal supplied by a single multi-mode fiber. By operating the photodetector of the optical receiver at zero bias voltage, while omitting typical active components, such as transimpedance amplifiers, a fully passive unit, requiring no external power supply, is obtained. Instead, a careful co-design is performed to maximize the power transfer from photodetector to antenna within the frequency range of interest using an impedance matching network. A wideband cavity-backed slot antenna is implemented in air-filled substrate-integrated-waveguide technology. The antenna feed plane serves as integration platform for the optical receiver. The resulting downlink remote antenna unit is compact, cost-effective, energy-efficient and extremely reliable. Therefore, it is an ideal building block for novel, highly specialized, ultra-high density wireless communication systems, which require massive amounts of remote antenna units, deployed in attocells as small as 15 cm ×15 cm. A prototype operating in a wide frequency bandwidth ranging from 3.30 GHz to 3.70 GHz is constructed and validated. In free-space conditions, a broadside gain of −0.2 dBi, a front-to-back ratio of 8.8 dB and linear polarization with a cross-polarization level of −28.8 dB are measured at 3.50 GHz. Furthermore, a −3 dB gain bandwidth of 500 MHz is observed. Finally, the prototype is deployed in a unidirectional data link, achieving a symbol rate of 80 MBd over a distance of 20 cm.

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Study of the capacitively fed microstrip antenna element

Cited by 98 publications

References 9 publications

A broadband circular polarization patch antenna with differential-feeding

A broadband circular polarization patch antenna with differential-feeding

Tunable electrically small UHF PIFA-as-a-package

Passive Opto-Antenna as Downlink Remote Antenna Unit for Radio Frequency Over Fiber

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