Frequency-Agile Self-Diplexing Antenna

Malakooti, Seyed-Ali

doi:10.1109/ams48904.2020.9059452

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…The proposed technique is compared with other available tuning techniques in Table 2. It has been demonstrated that by using the proposed passive tuning technique, a good tuning range of resonant frequency can be achieved, which is comparable to other available active tuning techniques [12–21] involving complex circuitry as illustrated in Table 2.…”

Section: Resultsmentioning

confidence: 74%

“…The network providers need to design and manufacture a huge variety of antennas, which is very time consuming and makes the inventory management expensive. Alternatively, actively tunable antennas [12–21] are used, which require additional complex DC bias circuitry, suffer from parasitic effect, frequency limitation, and additional power loss, component size and expense. But the CPEs work at fixed frequency bands where active tuning is not mandatory.…”

Section: Introductionmentioning

confidence: 99%

“…Two self‐diplexing tunable antennas are designed in Ref. [20, 21] using varactor diodes. Two self‐triplexing antennas are designed in Ref.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dielectric rod loaded tunable substrate integrated waveguide slot antenna

De¹,

Koul²,

Samanta³

2022

IET Microwaves Antenna & Prop

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This paper presents a novel passive tuning technique to mechanically tune the resonant frequency of a substrate integrated waveguide (SIW) slot antenna, by using cylindrical rods of different dielectric materials in the air holes. A full‐wave 3‐dimensional Electromagnetic simulator software is used to estimate tunability in the resonant frequency of the SIW slot antenna, which is then analysed using its equivalent circuit, and then verified experimentally. Tunability is obtained by changing relative permittivity of dielectric rods. Measurements show good frequency tunability even with a limited number of dielectric rods and gains over 5 dBi. The similarity in the radiation patterns with tuning, demonstrates a good characteristic for tunable antennas. The technique is simple but effective and does not require external direct current bias circuitry, which removes parasitic effects and less power consumption. The low field perturbation of dielectric rods provides better loss performance and a higher Q‐factor over a wider bandwidth. The initial design demonstrates a cost‐effective tuning technique achieving return loss (>10 dB) in the X‐band. This technique is also suitable for practically overcoming the performance deviation due to fabrication inaccuracies and temperature variation.

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Section: Resultsmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%