Conjoined, Two-Monopole Antenna Pair with Decoupling Inductor for Wi-Fi 6E Notebook Applications

Table 1

Comparison of the proposed design and other cited works [9–25]. λ is the free-space wavelength at the lowest frequency in the designed frequency band. Isolation is the largest value (worst case) over all the obtained bands.

Ref.	Frequency band (GHz)	Size ()	Spacing (mm)	Isolation (dB)	Decoupling method	Applications
[9]	2.4/5	0.06 × 0.37	14.4 (0.11−)	15	Resonant structure	N.A.
[10]	2.4/5	0.04 × 0.32	1.6 (0.013−)	15	Resonant structure	Notebook
[11]	2.4/5	0.04 × 0.30	2 (0.016−)	16	Resonant structure	Notebook
[12]	2.4	0.08 × 0.34	9 (0.072−)	16	Two-port S matrix	Phone
[13]	2.11–2.17	0.07 × 0.38	6.6 (0.043−)	17	Multi-port S matrix	Phone
[14]	3.3–3.8	0.15 × 0.46	2 (0.033−)	20	Equivalent circuit model for LC couplings	Phone
[15]	1.88–1.92	0.13 × 0.19	4.6 (0.029−)	25	Decoupling network	N.A.
[16]	2.4/5	0.09 × 0.37	4 (0.032−)	21	Decoupling matching network	N.A.
[17]	2.4.5	0.04 × 0.32	0	16	Dipole/monopole mode cancellation	Notebook
[18]	3.3–5.0	0.05 × 0.38	0	16	1.0−/1.5− loop mode cancellation	Notebook
[19]	3.4–4.2	0.09 × 0.34	0	10	CM/DM cancellation	Phone
[20]	3.3–3.5	0.05 × 0.38	0	13	0.5−/1.0− loop mode cancellation	Notebook
[21]	3.4–3.6	0.07 × 0.18	0	10	CM/DM cancellation	Phone
[22]	5/6	0.28 × 0.40	0	20	CM/DM cancellation	N.A.
[23]	3.4–3.8	0.05 × 0.23	1 (0.012−)	16	Parallel L/C band-stop circuit	tablet
[24]	2.4/5	0.04 × 0.33	1 (0.008−)	17	Parallel L/C band-stop circuit	Notebook
[25]	3.4–3.6	0.04 × 0.46	1 (0.012−)	11	Parallel L/C band-stop circuit	Phone
Proposed	2.4/5/6	0.03 × 0.32	1 (0.008−)	13	Parallel L/C band-stop circuit	Notebook

N. A, not available. patch antenna with 4 mm air spacing above the ground plane.