Compact, Microstrip-Based Folded-Shorted Patches: PCB antennas for use on microsatellites

Podilchak, Symon K.; Murdoch, Andrew; Antar, Yahia M. M.

doi:10.1109/map.2017.2655581

Cited by 33 publications

(19 citation statements)

References 15 publications

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“…The second one is to employ additional metallic via‐holes and lumped loads: A metallic via‐hole can be used to reduce the resonant frequency and to generate dual‐band resonant characteristics . By modifying a single metallic via‐hole into multiple via‐hole columns or short circuited walls, more compact sizes, or more reduced heights can be achieved. Using resistive or hybrid lumped element loading can also lead to compact, wideband designs at the cost of reduced radiation efficiency .…”

Section: Introductionmentioning

confidence: 99%

“…8 More recently, by using asymmetrical slits, 9 slit-meandered-line combinations 10 and multi-slot loaded techniques, 11 more compact, performance enhanced antennas can be realized. The second one is to employ additional metallic via-holes 4,[12][13][14][15][16][17] and lumped loads 18 : A metallic via-hole can be used to reduce the resonant frequency 4,13 and to generate dual-band resonant characteristics. 12,14,15 By modifying a single metallic via-hole into multiple via-hole columns 16 or short circuited walls, 17 more compact sizes, or more reduced heights can be achieved.…”

Section: Introductionmentioning

confidence: 99%

“…Most compact microstrip patch antennas exhibit single or multiple narrow band characteristics 4,[6][7][8][10][11][12][13][14][15][16][17][18][19][21][22][23][24][26][27][28][29] with available bandwidth <10%. Although for most of the wideband designs, 5,9,20,25 only the fundamental mode within a single patch radiator is excited and used for the purpose of radiation.…”

Section: Introductionmentioning

confidence: 99%

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Generalized design approach to compact wideband multi-resonant patch antennas

et al. 2018

Int J RF Microw Comput Aided Eng

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In this work, a generalized design approach to compact, wideband multi‐resonant microstrip patch antenna is proposed. Theoretical criterion of the length of the prototype dipole is laid down based on the simplest dipole model and the associated eigenmodes at first. Then, the criterion is employed to reveal the general relationship between the prototype dipole length, operational modes, sizes, and radiation behaviors of the resultant multi‐resonant circular sector patch antennas. Next, a compact wideband, dual‐resonant circular sector patch antenna is designed accordingly. It is operating at the TM3/4,1 and TM9/4,1 modes within a 240° circular sector patch radiator with its radii short circuited. The antenna fabricated on a single‐layered air substrate exhibits an available radiation bandwidth of 25.0%, with a profile as small as 0.043 guided wavelength at the center frequency. It is evidently verified that the approach can be employed to realize compact, dual‐resonant wideband microstrip patch antennas without increasing antenna profile, inquiring multiple radiators or employing reactance compensation techniques. In addition, it may lead to a series of novel wideband patch antenna designs with diverse performances.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Generalized design approach to compact wideband multi-resonant patch antennas

et al. 2018

Int J RF Microw Comput Aided Eng

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“…Even though such antennas are deployable their base and metal dish significantly increase their weight and these designs are expensive and difficult to scale down to the size required for satellites. Other designs such as, patch antenna arrays [21][22], have also been proposed, and researchers have attempted to find a compromise between acceptable gain and proper size. Origami geometries have significant advantages for launch-and-carry applications where antennas need to fold in order to miniaturize their size during launch, and unfold in order to operate after the platform has reached orbit [23][24][25].…”

Section: Problem Statementmentioning

confidence: 99%

“…22 shows the simulated and measured gain axial ratio along the +z direction of the Nojima origami antenna at its folded state. The measured axial ratio is below 2 (i.e., 3 dB) in the operating frequency band of 2.1 GHz to 3.5 GHz, which agrees with the simulation results.…”

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confidence: 99%

Origami Reconfigurable Electromagnetic Systems

Yao¹

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With the ever-increasing demand for wireless communications, there is a great need for efficient designs of electromagnetic systems. Reconfigurable electromagnetic systems are very useful because such designs can provide multi-functionality and support different services. The geometrical topology of an electromagnetic element is very important as it determines the element's RF performance characteristics. Origami geometries have significant advantages for launch-and-carry electromagnetic devices where devices need to fold in order to miniaturize their size during launch and unfold in order to operate after the platform has reached orbit. This dissertation demonstrates a practical process for designing reconfigurable electromagnetic devices using origami structures. Four different origami structures are studied and the integrated Mathematical-Computational-Electromagnetic models of origami antennas, origami reflectors and origami antenna arrays are developed and analyzed. These devices provide many unique capabilities compared with the traditional designs, such as band-switching, frequency tuning, polarization adjustment and mode reconfigurability. Prototypes are also manufactured to validate the performances of the designs. These designs change their geometry naturally, and they can be compactly vii packaged into small volume, which make them very suitable for spaceborne and satellite communication. Origami antennas and origami electromagnetics are expected to impact a variety of applications related to communications, surveillance and sensing. viii

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Review of antenna technologies for very high frequency Data Exchange Systems

Buendía

Liberto

Goussetis

et al. 2021

Satell Commun Network

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Summary The Automated Identification System (AIS) was originally developed as a terrestrial system tracking vessels near the coastline. Dedicated channels were allocated within the spectrum historically reserved for maritime applications in the very high frequency (VHF) band, enabling long range communications, up to a few kilometers. There have been various initiatives in the last decade that extended this system with a space segment, enabling global monitoring of vessels beyond the range of terrestrial stations. Recently, the World Radiocommunication Conference has allocated frequencies for the extension of this system to a two‐way VHF Data Exchange System (VDES) via satellite. This requires to adapt spaceborne antenna solutions previously developed for AIS, particularly for missions using small satellites and CubeSats. This paper provides a timely review of existing VHF antenna solutions and new concepts under development which could be applicable to VDES missions. Some key metrics are identified to provide a comparative study between various candidate solutions. Considering the range of possible missions, from secondary payloads on‐board larger satellites to dedicated constellations, it is believed that a number of antenna products can find application in future VDES space‐based infrastructure.

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Compact, Microstrip-Based Folded-Shorted Patches: PCB antennas for use on microsatellites

Cited by 33 publications

References 15 publications

Generalized design approach to compact wideband multi-resonant patch antennas

Generalized design approach to compact wideband multi-resonant patch antennas

Origami Reconfigurable Electromagnetic Systems

Review of antenna technologies for very high frequency Data Exchange Systems

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