• 沒有找到結果。

新式陶瓷材料於可調式天線之應用

N/A
N/A
Protected

Academic year: 2021

Share "新式陶瓷材料於可調式天線之應用"

Copied!
14
0
0

加載中.... (立即查看全文)

全文

Loading

數據

圖 4  第二版回聲實驗室結構  在已知參考天線的效率  之下,可以藉由個別量測出參考天線(Ref)與待測天線(AUT)在回聲 實驗室中的傳播係數 S 21,ref 與 S 21,AUT ,計算出待測天線的效率  。  2 21,AUT AUT ref 2 21,ref       (3.10)eeSS=× 因此我們把四種天線接收姿勢下所量測到的傳播係數作平均,可得到參考 天線與待測天線各頻率的傳播係數平均量值。再將此平均的傳播係數量值帶入 (3.10)後,則可計算出待測天線在 2.4、3.5 與 5.8
Table 1: Antenna efficiencies and gains measured in spherical near field chamber.
Figure 4: Moving Average of S21 spectra of reference and AUT antennas.

參考文獻

相關文件

For the proposed algorithm, we establish a global convergence estimate in terms of the objective value, and moreover present a dual application to the standard SCLP, which leads to

The CME drastically changes the time evolution of the chiral fluid in a B-field. - Chiral fluid is not stable against a small perturbation on v

For the proposed algorithm, we establish its convergence properties, and also present a dual application to the SCLP, leading to an exponential multiplier method which is shown

For your reference, the following shows an alternative proof that is based on a combinatorial method... For each x ∈ S, we show that x contributes the same count to each side of

• If we want analysis with amortized costs to show that in the worst cast the average cost per operation is small, the total amortized cost of a sequence of operations must be

• Delta hedge is based on the first-order approximation to changes in the derivative price, ∆f , due to changes in the stock price, ∆S.. • When ∆S is not small, the

In this thesis, we have proposed a new and simple feedforward sampling time offset (STO) estimation scheme for an OFDM-based IEEE 802.11a WLAN that uses an interpolator to recover

Thus, the proposed approach is a feasible and effective method for process parameter optimization in MIMO plastic injection molding and can result in significant quality and