A Full-360$^{\circ}$ Reflection-Type Phase Shifter With Constant Insertion Loss

Lin, Chien-San; Chang, Sheng-Fuh; Hsiao, Wen-Chun

doi:10.1109/lmwc.2007.915094

Cited by 61 publications

(11 citation statements)

References 6 publications

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“…설계 시 사용된 버랙터 다이오드는 MACOM사의 MAVR-000120-1411 모델이며 [16] , 제조사에서 제공한 데이터시트 에 따라 버랙터 다이오드는 그림 3과 같이 등가 회로 모 델로 표현될 수 있다. 본 연구에서는 버랙터 다이오드를 접합 커패시턴스(junction capacitance; 6)) 이론값은 아래 식과 같이 표현할 수 있다 [12] . 반적인 반사형 위상 천이기의 위상 천이가 크게 일어나 는 전압 구간에서 높은 삽입 손실이 발생하는 현상 [9], [10] 이 제안하는 위상 천이기의 3∼6 V 전압 구간에서 나타난 것을 알 수 있다.…”

Section: ⅰ 서 론unclassified

Design of Miniaturized 360° Analog Phase Shifter for Multi-Functional Transmit-Array Antenna

Hwang¹,

Kim²,

Lee³

et al. 2023

J. Korean Inst. Electromagn. Eng. Sci.

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This study compares the designs of one-stage and two-stage reflection-type phase shifters for miniaturized S-band multi-functional transmit-array antennas. Both phase shifters have areas smaller than 0.2 λ 0 ×0.4 λ 0 , which is less than half of the conventional unit cell size of 0.5λ λ 0 ×0.5 λ 0 , and both phase shifters have a phase shifting range of more than 360°. The one-stage phase shifter requires a miniaturized hybrid coupler, 1/4 wavelength transmission line, and additional elements to implement a wide phase shifting range; hence, the phase shifter has a non-uniform insertion loss distribution and a peak insertion loss of 4.3 dB. The two-stage phase shifter outperformed the one-stage phase shifter; it had a relatively uniform insertion loss distribution of 2.5 dB because of its simple circuit structure.

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Section: ⅰ 서 론unclassified

Design of Miniaturized 360° Analog Phase Shifter for Multi-Functional Transmit-Array Antenna

Hwang¹,

Kim²,

Lee³

et al. 2023

J. Korean Inst. Electromagn. Eng. Sci.

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“…Today, the application of new materials in the antenna field has helped to improve reconfigurable antenna design and thus enriched relevant theory [16,17]. Mechanical methods and phase shifting techniques can be employed to realize reconfigurable antenna designs [18][19][20]. When phase shifting techniques are adopted, variations in reflection phase shift may be continuous, and insertion loss is usually caused by reactive components [21].…”

Section: Introductionmentioning

confidence: 99%

Design of Pattern Reconfigurable Patch Antenna Array Based on Reflective Phase-Shifter

Shang

Zeng

Cui

et al. 2022

International Journal of Antennas and Propagation

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A circularly polarized (CP) broadside antenna array with a continuously adjustable beam is proposed and implemented. First, a reflection phase shifter with varactor diodes loaded on two output terminals of a branch directional coupler is realized. By controlling the voltage across both ends of the varactor diodes in the terminal load circuit, the reactance of the load is changed, allowing control of port phase shift. Following that, the microstrip patch antenna array is combined with the reflection phase shifter to achieve the pattern reconstruction for the array. For verification, a prototype of the designed pattern reconfigurable antenna (PRA) is fabricated and measured. The measurement results indicate that the beam direction of the antenna can be continuously adjusted with a change in the voltage across the varactor diodes. The maximum beam direction of the antenna reaches ±21° when the biggest DC bias voltage across the varactor diode is chosen as 15 V. Besides, the antenna shows good CP performance in different beam directions.

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“…The reflection type phase shifters (RTPSs) are widely used because their input/ output ports are well matched. Modern phase shifters design pursuits wide relative phase shift (RPS), low insertion loss (IL), low IL variation, and compact size [3][4][5][6][7][8][9][10]. Generally, wide RPS is achieved by constructing LC resonance [3], utilising multiple varactors with transmission lines [4] or coupled lines [5,6].…”

mentioning

confidence: 99%

“…Generally, wide RPS is achieved by constructing LC resonance [3], utilising multiple varactors with transmission lines [4] or coupled lines [5,6]. RTPSs with nearly constant IL were reported in [7,8]. The equalisation resistors were used to minimise the IL variation at the expense of high IL.…”

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Theoretical analysis and design of a compact analogue phase shifter with constant low insertion loss

et al. 2018

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An analogue phase shifter with a constant low insertion loss (IL) and compact size is proposed. It consists of two quarter wavelength transmission lines and three tunable reflective loads. The theoretical analysis to maximise the relative phase shift, reduce the IL and the IL variation of the phase shifter is presented explicitly, which provides performance estimation and design guidance for this class phase shifter. A circuit with a size of 0.12λ g × 0.21λ g is designed and fabricated to verify the theory. The simulated and measured results are in good agreement. The measurement shows that the relative phase shift of the proposed phase shifter is 186°at 1.97 GHz. The average IL is 0.79 dB with a very small IL variation which is just 0.02 dB.

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A Full-360$^{\circ}$ Reflection-Type Phase Shifter With Constant Insertion Loss

Cited by 61 publications

References 6 publications

Design of Miniaturized 360° Analog Phase Shifter for Multi-Functional Transmit-Array Antenna

Design of Miniaturized 360° Analog Phase Shifter for Multi-Functional Transmit-Array Antenna

Design of Pattern Reconfigurable Patch Antenna Array Based on Reflective Phase-Shifter

Theoretical analysis and design of a compact analogue phase shifter with constant low insertion loss

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