A broadband low profile microstrip filter-antenna with an omni-directional pattern

Wu, Weijun; Fan, Rong; Wang, Jun; Zhang, Qi

doi:10.1109/apcap.2014.6992560

Cited by 14 publications

(13 citation statements)

References 11 publications

(14 reference statements)

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“…This integration changes the structure of the circuit, improves the performance of the circuit and simplifies the connection among various components. Unlike many microstrip filtering antenna proposed in the literature [35][36][37][38][39][40][41][42][43][44], the design proposed here is better than others with respect to the structure size, design complexity, gain, bandwidth and the reflection coefficient characteristics. Also, this paper presents a compact second-order filtering antenna utilizing SIR and modified shaped slots on the monopole patch antenna.…”

Section: Design Of the Filtering Antennamentioning

confidence: 99%

Design of a Wide-Band Microstrip Filtering Antenna with Modified Shaped Slots and SIR Structure

et al. 2020

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This paper presents a new compact microstrip filtering antenna with modified shaped slots to improve the impedance bandwidth. The proposed microstrip filtering antenna consists of three parts: the monopole radiating patch antenna; the Stepped Impedance Resonator (SIR) filter; and the feeding microstrip line. The designed structure is achieved on one-sided glass epoxy FR-4 substrate with dielectric constant εr = 4.4 and thickness h = 1.6 mm. The design procedure of the proposed filtering antenna starts from the second-order Chebyshev low pass filter (LPF) prototype. The achieved results show an excellent performance of S11-parameter with broadside antenna gain on +z-direction. Having two transmission zeros at 5.4 GHz and 7.7 GHz, good skirt selectivity and a wide-band impedance bandwidth of about 1.66 GHz makes the designed filtering antenna suitable for high-speed data communications. Both the simulation results generated by using the Computer Simulation Technology (CST) software package and the measurement achieved by using a vector network analyzer (HP 8510C) and the anechoic chamber show good agreement.

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Section: Design Of the Filtering Antennamentioning

confidence: 99%

Design of a Wide-Band Microstrip Filtering Antenna with Modified Shaped Slots and SIR Structure

et al. 2020

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“…Recently many microstrip filter-antenna designs using different types of substrate materials have been proposed [53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71]. In [56], a co-design of a filter-antenna using a multilayered substrate is introduced for future wireless applications.…”

Section: Microstrip Filter-antenna (Filtenna) Integrationmentioning

confidence: 99%

A Survey on Reconfigurable Microstrip Filter–Antenna Integration: Recent Developments and Challenges

Al‐Yasir

Parchin

et al. 2020

Electronics

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Reconfigurable and tunable radio frequency (RF) and microwave (MW) components have become exciting topics for many researchers and design engineers in recent years. Reconfigurable microstrip filter–antenna combinations have been studied in the literature to handle multifunctional tasks for wireless communication systems. Using such devices can reduce the need for many RF components and minimize the cost of the whole wireless system, since the changes in the performance of these applications are achieved using electronic tuning techniques. However, with the rapid development of current fourth-generation (4G) and fifth-generation (5G) applications, compact and reconfigurable structures with a wide tuning range are in high demand. However, meeting these requirements comes with some challenges, namely the increased design complexity and system size. Accordingly, this paper aims to discuss these challenges and review the recent developments in the design techniques used for reconfigurable filters and antennas, as well as their integration. Various designs for different applications are studied and investigated in terms of their geometrical structures and operational performance. This paper begins with an introduction to microstrip filters, antennas, and filtering antennas (filtennas). Then, performance comparisons between the key and essential structures for these aspects are presented and discussed. Furthermore, a comparison between several RF reconfiguration techniques, current challenges, and future developments is presented and discussed in this review. Among several reconfigurable structures, the most efficient designs with the best attractive features are addressed and highlighted in this paper to improve the performance of RF and MW front end systems.

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“…Figure 10 shows the dimension of circular patch antennas in the first simulation. Various types of patch antennas with omnidirectional radiation patterns are available [30,31,32,33,34]. We chose a circular patch antenna [30] as the implementation architecture for validation.…”

Section: Simulationmentioning

confidence: 99%

A Fast Calibration Method for Phased Arrays by Using the Graph Coloring Theory

Yang

Dang

et al. 2018

Sensors

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Phased array radars are able to provide highly accurate airplane surveillance and tracking performance if they are properly calibrated. However, the ambient temperature variation and device aging could greatly deteriorate their performance. Currently, performing a calibration over a large-scale phased array with thousands of antennas is time-consuming. To facilitate the process, we propose a fast calibration method for phased arrays with omnidirectional radiation patterns based on the graph coloring theory. This method transforms the calibration problem into a coloring problem that aims at minimizing the number of used colors. By reusing the calibration time slots spatially, more than one omnidirectional antenna can perform calibration simultaneously. The simulation proves this method can prominently reduce total calibration time and recover the radiation pattern from amplitude and phase errors and noise. It is worth noting that the total calibration time consumed by the proposed method remains constant and is negligible compared with other calibration methods.

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A broadband low profile microstrip filter-antenna with an omni-directional pattern

Cited by 14 publications

References 11 publications

Design of a Wide-Band Microstrip Filtering Antenna with Modified Shaped Slots and SIR Structure

Design of a Wide-Band Microstrip Filtering Antenna with Modified Shaped Slots and SIR Structure

A Survey on Reconfigurable Microstrip Filter–Antenna Integration: Recent Developments and Challenges

A Fast Calibration Method for Phased Arrays by Using the Graph Coloring Theory

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